https://www.e-olymp.com/az/problems/265

/*
    Author: Kanan Asgarli
    https://www.e-olymp.com/az/problems/265
*/
#include <iostream>
#include <algorithm>
using namespace std;
string num1, num2, ans;
int q, k, sum;
int main()
{
    cin>>num1>>num2;
    reverse(num1.begin(), num1.end());
    reverse(num2.begin(), num2.end());
    if(num1.length() > num2.length())
        swap(num1, num2);
    for(int i = 0; i < num1.length(); i++){
        k = (int)(num1[i]-48) + (int)(num2[i]-48);
        sum = k + q;
        ans += (char)(sum%10+48);
        q = sum/10;
    }
    for(int i = num1.length(); i < num2.length(); i++){
        k = (int)(num2[i]-48);
        sum = k + q;
        ans += (char)(sum%10+48);
        q = sum/10;
    }
    if(q > 0)
        ans += (char)(q+48);
    reverse(ans.begin(), ans.end());
    cout<<ans<<endl;
    system("pause");
    return 0;
}