#include <iostream>
#include <cmath>
#include <string>
#include <algorithm>
#include <vector>

using namespace std;

vector<long long> sumV( vector<long long> a, vector<long long> b ) {
    bool f1 = false;
    if (a.size() < b.size()) {
        swap(a, b);
        f1 = true;
    }

    /*for (int i = a.size()-1; i < k; ++i) {
        a.push_back(0);
    }
    for (int i = b.size()-1; i < k; ++i) {
        b.push_back(0);
    }*/

    vector<long long> r;
    for (long long i = 0; i < a.size(); ++i) {
        r.push_back(0);
    }

    for (long long i = 0; i < a.size(); ++i) {
        if (i+ b.size() - a.size() < 0) {
            r[i] += a[i];
        } else {
            r[i] += a[i] + b[i+ b.size() - a.size()];

            if (r[i] > 9 && i < a.size()-1) {
                r[i] -= 10;
                r[i-1]++;
            }
        }

    }

    if (f1) {
        swap(a, b);
    }

    return r;
}

int main()
{

    bool f1 = true;
    string s;
    getline(cin, s);

    vector<long long> a;
    for (long i = 0; i < s.size(); ++i) {
        if (f1) {
            f1 = false;
            while (s[i] == '0') i++;
        }

        a.push_back(s[i]-'0');
    }

    getline(cin, s);
    f1 = true;

    vector<long long> b;
    for (long long i = 0; i < s.size(); ++i) {
        if (f1) {
            f1 = false;
            while (s[i] == '0') i++;
        }

        b.push_back(s[i]-'0');
    }


    vector<long long> ans = sumV(a, b);
    for (long long i = 0; i < ans.size(); ++i) {
        cout << ans[i];
    }

    return 0;
}