func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long n, m;     cin >> n >> m;     vector<long long> a(n);     for (long long i = 0; i < n; i++) {       cin >> a[i];     }     sort(a.begin(), a.end());     long long sum = 0;     for (long long i = 0; i < m; i++) {       if (a[i] <= 0) sum += a[i];     }     if (sum <= 0) {       cout << abs(sum);     } else {       cout <<  0 ;     }     return 0;   }   