Envío 4379

Código

def sum_two_nums(number1: str, number2: str) -> str:
    number2 = (len(number1) - len(number2)) * "0" + number2
    number = []
    i = add = 0
    while i < len(number1):
        coc, res = divmod(int(number1[-i-1]) + int(number2[-i-1]) + add, 10)
        number.append(str(res))
        i, add = i + 1, coc
    if add:
        number.append(str(add))
    return "".join(number[::-1])

num1 = input()
num2 = input()
print(sum_two_nums(num1, num2))