#include <iostream>
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}
int main() {
    fastcin;
    int a, b, ans;
    cin >> a >> b;
    ans = (-a-b)*(-1);
    printf("%d\n", ans);
    return 0;
}