#include <iostream>

#include<string>

using namespace std;

int main()

{

    string str1,str2;

    cin >> str1 >> str2;//保存两个数字

    int d = ;//进位

    int str3[];

    int i = ;

    int a, b;

    for (;i < str1.length() ||i< str2.length();++i)

    {

        if (i >= str1.length())

        {

            a = ;

       }

        else   a = str1[str1.length() -  - i] - (int)'';

        if (i >= str2.length())

        {

            b = ;

        }else b = str2[str2.length() -  - i] - (int)'';

        int c = a + b+d;

        if (c >= ) d = ;

        else d = ;

        str3[i] = c%;

    }

    if (d == )

    {

        str3[i] = ;

        i++;

    }

    bool flag = ;//判断第一个数是不是0

    for (int j = i-;j >=;--j)

    {

        if (str3[j] !=  || flag)

        {

            flag = ;

            cout << str3[j];

        }

    }

    if (!flag) cout << ;//这点千万不能忘记

    return ;

}