#include <bits/stdc++.h>
using namespace std;

int main(){
    string a, b;
    cin >> a >> b;

    int n = a.length();
    int m = b.length();

    if(n < m){
        swap(a, b);
        swap(n, m);
    }

    string add;
    for(int i = 0; i<n-m; ++i){
        add += '0';
    }

    b = add + b;

    stack <int> s;
    
    int rest = 0;
    for(int i = n-1; i>=0; --i){
        int x = a[i]-'0'+b[i]-'0'+rest;
        s.push(x%10);
        rest = x/10;
    }

    if(rest) cout << rest;
    while(!s.empty()){
        cout << s.top();
        s.pop();
    }
}