new_contents: class Solution:
      def hammingDistance(self, x, y):
          """
          :type x: int
          :type y: int
          :rtype: int
          """
          res = 0
          for i in bin(x|y):
              if i == '1':
                  res += 1
          for i in bin(x&y):
              if i == '1':
                  res -= 1
          return res
  
subject: Create or_minus_and.py