new_contents: import sys
  import math
  
  # Auto-generated code below aims at helping you parse
  # the standard input according to the problem statement.
  
  n_1, n_2 = input().split()
  for x in range(len(n_1)):
      if (n_1[x] == '1' or n_2[x] == '1') and n_1[x] != n_2[x]:
          print('1',end='')
      else:
          print('0',end='')
  # Write an action using print
  # To debug: print("Debug messages...", file=sys.stderr)
  
  
  
subject: Create strBinaryXOR.py