#include <cstdio>
#include <string>
#include <iostream>

using namespace std;

string IntToStr(int a) {
    string res = "";
    while (a) {
        char sym = '0' + a % 10;
        res = sym + res;
        a /= 10;
    }
    return res;
}

int main() {
    int a, b;
    cin >> a >> b;
    string res = IntToStr(a) + IntToStr(b);
    cout << res << endl;
    return 0;
}