comefrom: <garvit244>131_1.py
code: def valid(s):
      for i in range(len(s)/2):
          if s[i] != s[-(i+1)]:
              return False
      return True
masked: def sample_funcname ( var_0 ) :
      for var_4 in range ( len ( var_0 ) / 2 ) :
          if var_0 [ var_4 ] != var_0 [ - ( var_4 + 1 ) ] :
              return False
      return True
  