C++(씨쁠쁠)(cplusplus)-백준(baekjoon)(BaekJoon)코딩 5565번:영수증

#include <iostream>
using namespace std;
int main() {
    int total, price, sum = 0;
    cin >> total;
    for (int i = 0; i < 9; i++)
    {
        cin >> price;
        sum += price;
    }
    cout << total - sum << '\n';
}