#include <bits/stdc++.h>
using namespace std;
char s[10010];
int main() {
  int n;
  cin >> n;
  while (n--) {
    string a;
    cin >> a;
    for (int i = 0; i < a.size(); i++) {
      s[i] = a[i];
    }
    sort(s, s + a.size());
    if (s[0] == s[a.size() - 1]) {
      cout << -1 << endl;
    } else {
      for (int i = 0; i < a.size(); i++) {
        cout << s[i];
      }
      cout << endl;
    }
  }
}
