func_code_string: #include <bits/stdc++.h>   using namespace std;   int tt;   string input;   int main() {     cin >> tt;     for (int qq = 1; qq <= tt; qq++) {       cin >> input;       int count[250] = {};       for (char c : input) count[c -  a ]++;       int diff = 0;       for (int i = 0; i < 250; i++) {         if (count[i] > 0) diff++;       }       if (diff == 1)         cout <<  -1  << endl;       else {         sort(input.begin(), input.end());         cout << input << endl;       }     }     return 0;   }   