comefrom: <doocs>1486.XOR Operation in an Array_1.py
code: def xorOperation( n: int, start: int) -> int:
      res = 0
      for i in range(n):
          res ^= start + (i << 1)
      return res
masked: def sample_funcname ( var_0 : int , var_1 : int ) -> int :
      var_2 = 0
      for var_3 in range ( var_0 ) :
          var_2 ^= var_1 + ( var_3 << 1 )
      return var_2
  