func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int arr;     int a = 0, b = 0, i, j, k;     for (i = 0; i < n; i++) {       cin >> arr;       if (arr >= 0) {         a += arr;       } else {         b += arr;       }     }     cout << a - b << endl;     return 0;   }   