#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

string add(string a, string b) {
    reverse(a.begin(), a.end());
    reverse(b.begin(), b.end());

    int ms = max(a.size(), b.size()); 
    string tmp;
    tmp.resize(ms + 1, '0');

    int carry = 0;
    for (int i = 0; i < ms; i++) {
        int x = (i < a.size() ? a[i] - '0' : 0);
        int y = (i < b.size() ? b[i] - '0' : 0);
        int sum = x + y + carry;
        tmp[i] = sum % 10 + '0';
        carry = sum / 10;
    }
    if (carry) tmp[ms] = carry + '0';
    else tmp.pop_back();

    reverse(tmp.begin(), tmp.end());
    return tmp;
}

int main() {
    string a, b;
    cin >> a >> b;
    cout << add(a, b) << endl;
    return 0;
}