def sum_number_1(a: int, b: int) -> None:
    result: int = a + b


def sum_number_2(a: int, b: int) -> int:
    result: int = a + b
    return result


def sum_number_3(a: int, b: int) -> tuple:
    result: int = a + b
    return (result, sum_number_2(a=a, b=b))


x_1 = sum_number_1(5, 10)
x_2 = sum_number_2(5, 10)
x_3 = sum_number_3(5, 10)

print(x_1, x_2, x_3)