// UUID: 89908401-c6ad-4001-a1fc-83b4d8d067d3
#include <bits/stdc++.h>
#include <string>
#include <vector>
using namespace std;

int main() {
	int n; cin >> n;
	string s;
	for (int t = 0; t < n; t++) {
		bool fail = false;
		cin >> s;
		vector<int> alphabet(0);
		for (int i = 0; i < s.length(); i++) {
			if (count(alphabet.begin(), alphabet.end(), s[i] + 'z') > 0 || s[i] != s[i + 1]) {
				if (count(alphabet.begin(), alphabet.end(), s[i]) > 0) {
					cout << -1;
					fail = true;
					break;
				}
				alphabet.push_back(s[i]);
				continue;
			}
			alphabet.push_back(s[i] + 'z');
			i++;
		}
		if (fail) continue;
		char letter = 'a';
		for (int i : alphabet) {
			if (i > 'z') {
				letter = i - 'z';
				cout << letter << letter << ' ';
				continue;
			}
			letter = i;
			cout << letter << ' ';
		}
		cout << '\n';//count(alphabet.begin(), alphabet.end(), s[i]) > 0
	}
}