#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
vector<int> add(const vector<int>& A, const vector<int>& B) {
    vector<int> C;
    int t = 0; 
    for (int i = 0; i < A.size() || i < B.size() || t; i++) {
        if (i < A.size()) t += A[i];
        if (i < B.size()) t += B[i];
        C.push_back(t % 10);
        t /= 10;
    }
    return C;
}

int main() {
    string a, b;
    vector<int> A, B;
    cin >> a >> b;
    for (int i = a.size() - 1; i >= 0; i--) A.push_back(a[i] - '0');
    for (int i = b.size() - 1; i >= 0; i--) B.push_back(b[i] - '0');
    auto result = add(A, B);
    if (result.empty()) {
        cout << 0 << endl;
    } else {
        for (int i = result.size() - 1; i >= 0; i--) {
            cout << result[i];
        }
        cout << endl;
    }

    return 0;
}

/**************************************************************
	Problem: 1268
	User: suzihang1
	Language: C++
	Result: Accepted
	Time:26 ms
	Memory:2080 kb
****************************************************************/