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  1. while 1:
  2. h,w=map(int,input().split())
  3. print("%.2f"%(1e4*w/h/h))
  4.  
Runtime error #stdin #stdout #stderr 0.04s 9572KB
stdin
150 50
160 55
180 120
150 225
stdout
22.22
21.48
37.04
100.00
stderr
Traceback (most recent call last):
  File "./prog.py", line 2, in <module>
EOFError: EOF when reading a line