#include <bits/stdc++.h>
using namespace std;
const double PI = acos(-1.0);
const double eps = 1e-6;
const int inf = 1e9;
const long long llf = 1e18;
const int mod = 1e9 + 7;
const int maxn = 1e5 + 10;
char s[110];
int f[310];
int main() {
  int tc;
  cin >> tc;
  while (tc--) {
    cin >> s + 1;
    int n = strlen(s + 1);
    sort(s + 1, s + n + 1);
    string s1 = "", s2 = "";
    for (int i = 1; i <= n; i++) {
      f[s[i]]++;
    }
    for (int i = 'a'; i <= 'z'; i++) {
      if (i & 1) {
        while (f[i]) {
          s1 += i;
          f[i]--;
        }
      } else {
        while (f[i]) {
          s2 += i;
          f[i]--;
        }
      }
    }
    string t = s1 + s2;
    int flag = 1;
    for (int i = 1; i < t.size(); i++) {
      if (abs(t[i] - t[i - 1]) == 1) {
        flag = 0;
        break;
      }
    }
    if (flag) {
      cout << t << endl;
      continue;
    }
    t = s2 + s1;
    flag = 1;
    for (int i = 1; i < t.size(); i++) {
      if (abs(t[i] - t[i - 1]) == 1) {
        flag = 0;
        break;
      }
    }
    if (flag) {
      cout << t << endl;
    } else {
      cout << "No answer" << endl;
    }
  }
  return 0;
}
