func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int a[n];     for (int x = 0; x < n; x++) {       cin >> a[x];     }     for (int i = 0; i < n; ++i) {       for (int j = 0; j < n; ++j) {         for (int k = 0; k < n; ++k) {           if (a[i] == a[j] + a[k] && (i != j && j != k && i != k)) {             cout << i + 1 <<     << j + 1 <<     << k + 1 << endl;             return 0;           }         }       }     }     cout <<  -1  << endl;     return 0;   }   