func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int ans = 0;     for (int i = 0; i < n; i++) {       int val;       cin >> val;       if (val >= 0)         ans += val;       else         ans -= val;     }     cout << ans << endl;   }   