Question

Python

Input should be : 122

And output should be :1372

Answer 1

def has_even_digit(n):
    while n > 0:
        d = n % 10
        if d % 2 == 0:
            return True
        n //= 10
    return False


def reverse(n):
    result = 0
    while n > 0:
        d = n % 10
        result *= 10
        result += d
        n //= 10
    return result


def main():
    n = int(input("Enter a number: "))
    while True:
        rev = reverse(n)
        n += rev
        if not has_even_digit(n):
            break
    print(n)


main()

$\color{red}please\;note\;1372\;contains\;an\;even\;digit(2).\;so,\;output\;is\;not\;1372$

$\color{red}if\;you\;still\;think\;1372\;is\;output,\;then\;please\;let\;me\;know\;how\;it\;is,\;then\;I\;will\;change\;code!$