#include <bits/stdc++.h>
using namespace std;
int cnt[30];
void vOut(int l, int r) {
  int i, j;
  for (i = l; i <= r; i += 2)
    for (j = 1; j <= cnt[i]; j++) cout << char(i + 'a');
}
int main() {
  int t;
  cin >> t;
  while (t--) {
    int i, j;
    bool no = true, have[2];
    string s;
    cin >> s;
    memset(cnt, 0, sizeof cnt);
    have[0] = have[1] = false;
    for (i = 0; i < s.size(); i++) {
      cnt[s[i] - 'a']++;
      have[(s[i] - 'a') & 1] = true;
    }
    if (!have[0] || !have[1]) {
      cout << s << endl;
      continue;
    }
    for (i = 0; i < 26 && no; i += 2) {
      if (cnt[i] == 0) continue;
      for (j = 1; j < 26 && no; j += 2) {
        if (cnt[j] == 0 || abs(i - j) == 1) continue;
        vOut(i + 2, 25);
        vOut(0, i);
        vOut(j, 25);
        vOut(1, j - 1);
        cout << endl;
        no = false;
      }
    }
    if (no) cout << "No answer" << endl;
  }
  return 0;
}
