#include <bits/stdc++.h>
using namespace std;
void solve() {
  string s;
  cin >> s;
  string ans;
  vector<long long> a(26);
  for (char c : s) {
    a[c - 'a']++;
  }
  for (long long i = 0; i < 26; i += 2) {
    for (long long j = 0; j < a[i]; j++) {
      ans += (i + 'a');
    }
  }
  if (ans.size() == 0) {
    for (long long i = 1; i < 26; i += 2) {
      for (long long j = 0; j < a[i]; j++) {
        ans += (i + 'a');
      }
    }
    cout << ans << "\n";
    return;
  } else {
    for (long long i = 1; i < 26; i += 2) {
      if (a[i] == 0) continue;
      if (abs(ans[0] - 'a' - i) > 1) {
        string ans1;
        for (long long j = i - 2; j >= 0; j -= 2) {
          for (long long k = 0; k < a[j]; k++) {
            ans1 += (j + 'a');
          }
        }
        for (long long j = i + 2; j < 26; j += 2) {
          for (long long k = 0; k < a[j]; k++) {
            ans1 += (j + 'a');
          }
        }
        for (long long j = 0; j < a[i]; j++) {
          ans1 += (i + 'a');
        }
        cout << ans1 << ans << "\n";
        return;
      } else if (abs(ans.back() - 'a' - i) > 1) {
        string ans1;
        for (long long j = 0; j < a[i]; j++) {
          ans1 += (i + 'a');
        }
        for (long long j = i - 2; j >= 0; j -= 2) {
          for (long long k = 0; k < a[j]; k++) {
            ans1 += (j + 'a');
          }
        }
        for (long long j = i + 2; j < 26; j += 2) {
          for (long long k = 0; k < a[j]; k++) {
            ans1 += (j + 'a');
          }
        }
        cout << ans << ans1 << "\n";
        return;
      }
    }
  }
  if (ans.size() == s.size()) {
    cout << ans << "\n";
  } else
    cout << "No answer"
         << "\n";
}
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  long long t;
  cin >> t;
  while (t--) solve();
  return 0;
}
