func_code_string: #include <bits/stdc++.h>   using namespace std;   const unsigned int MOD = 1000000007;   void solve() {     string s;     cin >> s;     string t;     cin >> t;     vector<char> v;     bool check1 = false;     bool check2 = false;     bool check3 = false;     for (int i = 0; i < s.length(); i++) {       if (s[i] ==  a ) {         check1 = true;       }       if (s[i] ==  b ) {         check2 = true;       }       if (s[i] ==  c ) {         check3 = true;       }     }     if (t[0] ==  a  && t[1] ==  b  && t[2] ==  c  && check1 && check2 && check3) {       for (int j = 0; j < s.length(); j++) {         if (s[j] ==  a ) {           v.push_back(s[j]);         }       }       for (int j = 0; j < s.length(); j++) {         if (s[j] ==  c ) {           v.push_back(s[j]);         }       }       for (int j = 0; j < s.length(); j++) {         if (s[j] ==  b ) {           v.push_back(s[j]);         }       }     } else {       for (int j = 0; j < s.length(); j++) {         if (s[j] ==  a ) {           v.push_back(s[j]);         }       }       for (int j = 0; j < s.length(); j++) {         if (s[j] ==  b ) {           v.push_back(s[j]);         }       }       for (int j = 0; j < s.length(); j++) {         if (s[j] ==  c ) {           v.push_back(s[j]);         }       }     }     sort(s.begin(), s.end());     for (int i = 0; i < s.length(); i++) {       if (s[i] !=  a  && s[i] !=  b  && s[i] !=  c ) {         v.push_back(s[i]);       }     }     for (auto it : v) {       cout << it;     }     cout << endl;   }   signed main() {     int t;     cin >> t;     while (t--) {       solve();     }     return 0;   }   