#include <bits/stdc++.h>
using namespace std;
const long long INF = 1e18;
const long long N = 1e5 + 5;
void solve() {
  string s;
  cin >> s;
  long long n = s.length();
  string t[2];
  for (auto ch : s) {
    t[(ch - 'a') & 1].push_back(ch);
  }
  sort(t[0].begin(), t[0].end()), sort(t[1].begin(), t[1].end());
  if (t[0].empty() or t[1].empty()) {
    t[0].append(t[1]);
    cout << t[0] << endl;
    return;
  }
  if (abs(t[0].back() - t[1][0]) != 1) {
    t[0].append(t[1]);
    cout << t[0] << endl;
    return;
  } else if (abs(t[1].back() - t[0][0]) != 1) {
    t[1].append(t[0]);
    cout << t[1] << endl;
    return;
  }
  cout << "No answer\n";
}
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  long long tt;
  cin >> tt;
  while (tt--) solve();
  return 0;
}
