#include <bits/stdc++.h>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    string a, b;
    cin >> a >> b;
    if (a.size() < b.size()) {
        swap(a, b);
    }
    int n = a.size(), m = b.size();
    vector<int> calc(n + 1, 0);
    while (b.size() < a.size()) {
        b = '0' + b;
    }
    for (int i = n - 1; i >= 0; i--) {
        calc[i + 1] += int(a[i] - '0') + int(b[i] - '0');
        if (calc[i + 1] >= 10) {
            calc[i + 1] -= 10;
            calc[i] += 1;
        }
    }
    bool zero = true;
    for (int i = 0; i <= n; i++) {
        if (calc[i] > 0) {
            zero = false;
        }
        if (!zero) {
            cout << calc[i];
        }
    }
    if (zero) {
        cout << 0;
    }
    cout << '\n';
}