Knight move sorted by xnor (test)

while True:
 x_in, y_in = raw_input()
 cells = []
 for x_test in 'abcdefgh':
  for y_test in '12345678':
   x_diff = ord(x_test) - ord(x_in)
   y_diff = ord(y_test) - ord(y_in)
   dist_square = x_diff ** 2 + y_diff**2
   if dist_square == 5:
    cell = x_test + y_test
 print' '.join(cells)

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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