UKE 求救

#include <cstring>
#include <iostream>
#include <algorithm>

using namespace std;

int h1, h2;

int main() {
    ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
    cin >> h1 >> h2;
    cout << h1 - h2 << endl;
    return 0;
}