#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int t, n, i;
  string s;
  vector<char> v1, v2;
  cin >> t;
  while (t--) {
    cin >> s;
    sort(s.begin(), s.end());
    n = s.length();
    v1.clear();
    v2.clear();
    char p = s[0];
    int f1 = 0, f2 = 0;
    v1.push_back(s[0]);
    i = 1;
    while (i < n) {
      if (abs(s[i] - p) == 1)
        v2.push_back(s[i]);
      else {
        v1.push_back(s[i]);
        p = s[i];
      }
      ++i;
    }
    if (!v2.empty() && abs(v2[v2.size() - 1] - v1[0]) == 1) f1 = 1;
    if (!v2.empty() && abs(v1[v1.size() - 1] - v2[0]) == 1) f2 = 1;
    if (f1 == 1 && f2 == 1)
      cout << "No answer\n";
    else {
      if (f1 == 0) {
        for (i = 0; i < v2.size(); i++) cout << v2[i];
        for (i = 0; i < v1.size(); i++) cout << v1[i];
        cout << "\n";
      } else {
        for (i = 0; i < v1.size(); i++) cout << v1[i];
        for (i = 0; i < v2.size(); i++) cout << v2[i];
        cout << "\n";
      }
    }
  }
}
