

'''simple docstring'''







def  UpperCAmelCase__      ( UpperCAmelCase__,    UpperCAmelCase__			)     ->     int:
       while second != 0:
              A_		   = first & second
              first ^= second
              A_		   = c << 1
       return first


if __name__ == "__main__":
      import doctest

      doctest.testmod()

      __lowerCamelCase						    =      int(input('''Enter the first number: ''').strip())
      __lowerCamelCase						    =      int(input('''Enter the second number: ''').strip())
      print(f"""{add(first, second) = }""")



'''simple docstring'''







def  UpperCAmelCase__      ( UpperCAmelCase__ = 10_00			)     ->     int:
       return sum(2 * a * ((a - 1) // 2) for a in range(3,    n + 1			)			)


if __name__ == "__main__":
      print(solution())
