input: def calculate_sum_with_lambda(a: int, b: int) -> str:
      """ Suggest a valid Python syntax to calculate the sum of two variables using lambda
      >>> calculate_sum_with_lambda(3, 4)
      'sum = lambda a, b : a + b\nprint(sum(3,4))'
      """
output:     sum_lambda = lambda a, b: a + b
      return f'sum = lambda a, b : a + b\nprint(sum({a},{b}))'