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def y(x):
	if x==0:
	  return 600
	else:
	   return y(x-1)*0.5
print y(-2)

Runtime error #stdin #stdout #stderr 0.17s 47952KB

stdin

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Standard input is empty

stdout

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Standard output is empty

stderr

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Traceback (most recent call last):
  File "<builtin>/app_main.py", line 75, in run_toplevel
  File "prog.py", line 6, in <module>
    print y(-2)
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
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    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return y(x-1)*0.5
  File "prog.py", line 5, in y
    return

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