func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     for (int i = 0; i < t; i++) {       string s;       cin >> s;       int cnt[26];       fill(cnt, cnt + 26, 0);       set<int> st;       int u = s.size();       for (int j = 0; j < u; j++) {         int y = s[j] -  a ;         cnt[y]++;         st.insert(y);       }       u /= 2;       vector<int> ans;       vector<int> v;       for (auto itr = st.begin(); itr != st.end(); itr++) {         v.push_back(*itr);       }       if (v.size() == 1) {         cout << s << endl;         continue;       }       if (v.size() == 2) {         if (v[0] - v[1] == -1)           cout <<  No answer  << endl;         else {           cout << s << endl;         }         continue;       }       if (v.size() == 3) {         if (v[0] == v[1] - 1 && v[1] == v[2] - 1)           cout <<  No answer  << endl;         else if (v[0] == v[1] - 1) {           for (int j = 0; j < cnt[v[0]]; j++) cout << (char)(v[0] +  a );           for (int j = 0; j < cnt[v[2]]; j++) cout << (char)(v[2] +  a );           for (int j = 0; j < cnt[v[1]]; j++) cout << (char)(v[1] +  a );           cout << endl;         } else if (v[1] == v[2] - 1) {           for (int j = 0; j < cnt[v[2]]; j++) cout << (char)(v[2] +  a );           for (int j = 0; j < cnt[v[0]]; j++) cout << (char)(v[0] +  a );           for (int j = 0; j < cnt[v[1]]; j++) cout << (char)(v[1] +  a );           cout << endl;         } else {           for (int j = 0; j < cnt[v[0]]; j++) cout << (char)(v[0] +  a );           for (int j = 0; j < cnt[v[2]]; j++) cout << (char)(v[2] +  a );           for (int j = 0; j < cnt[v[1]]; j++) cout << (char)(v[1] +  a );           cout << endl;         }         continue;       }       for (int j = 1; j < v.size(); j += 2) {         for (int k = 0; k < cnt[v[j]]; k++) cout << (char)(v[j] +  a );       }       for (int j = 0; j < v.size(); j += 2) {         for (int k = 0; k < cnt[v[j]]; k++) cout << (char)(v[j] +  a );       }       cout << endl;     }   }   