#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long i, j, k, n, m, r, ii, t;
  cin >> t;
  string s;
  for (ii = 0; ii < t; ii++) {
    cin >> s;
    int a[26] = {0};
    for (i = 0; i < s.size(); i++) {
      a[s[i] - 'a']++;
    }
    string ans = "", temp = "";
    i = 0;
    j = 25;
    while (i < 26 && a[i] == 0) i++;
    while (j >= 0 && a[j] == 0) j--;
    while (i + 1 < j) {
      for (k = 0; k < a[i]; k++) ans += (i + 'a');
      for (k = 0; k < a[j]; k++) ans += (j + 'a');
      i++;
      j--;
      while (i < 26 && a[i] == 0) i++;
      while (j >= 0 && a[j] == 0) j--;
    }
    if (i + 1 == j) {
      for (k = 0; k < a[i]; k++) ans += (i + 'a');
      if (ans[0] + 1 != j + 'a') {
        string ss = "";
        for (k = 0; k < a[j]; k++) ss += (j + 'a');
        ans = ss + ans;
      } else {
        cout << "No answer" << endl;
        continue;
      }
      cout << ans << endl;
    } else if (i == j) {
      string ss = "";
      for (k = 0; k < a[i]; k++) ss += (i + 'a');
      if (ans.size() == 0) {
        cout << ss << endl;
        continue;
      }
      if (abs(ss[0] - ans[0]) != 1) {
        ans = ss + ans;
        cout << ans << endl;
        continue;
      }
      if (abs(ss[0] - ans[ans.size() - 1]) != 1) {
        ans += ss;
        cout << ans << endl;
        continue;
      }
      cout << "No answer" << endl;
    } else
      cout << ans << endl;
  }
  return 0;
}
