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  1. import re
  2. import sys
  3.  
  4. for inp in sys.stdin:
  5. outp = re.sub('([01])',
  6. lambda m: str(0 + int(not(int(m.group(1))))), inp)
  7. print(outp, end='')
  8.  
Success #stdin #stdout 0.03s 9844KB
stdin
f0r th0se 4b0ut t0 r0ck
w3 s4lut3 y0u!!1!!!
stdout
f1r th1se 4b1ut t1 r1ck
w3 s4lut3 y1u!!0!!!