Untitled

#include <iostream>
using namespace std;

int main()
{
    int a, b, res;
    cin >> a >> b;
    int lenA = 0, lenB = 0, temp = a;

    while (temp > 0) {
        lenA++;
        temp /= 10;
    }

    temp = b;
    while (temp > 0) {
        lenB++;
        temp /= 10;
    }

    if (lenA == lenB) {
        res = a;
        for (int i = 0; i < lenA; i++) {
            res *= 10;
        }
        res += b;
    }

    else {
        if (lenA < lenB) {
            temp = a;
            a = b;
            b = temp;

            temp = lenA;
            lenA = lenB;
            lenB = temp;
        }
        
        res = b;
        for(int i = 0; i < (lenA - lenB); i++) {
            res *= 10;
        }

        for (int i = 0; i < (lenA - lenB); i++) {
            int powerOf10 = 1;
            for (int j = 0; j < i; j++) {
                powerOf10 *= 10;
            }
            res += (a % 10) * powerOf10;
            a /= 10;
            
        }
    }

    cout << res;
}