func_code_string: #include <bits/stdc++.h>   using namespace std;   signed main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     string s;     cin >> s;     int n = s.size();     int cz = 0;     int co = 0;     int ct = 0;     for (int i = 0; i < n; i++) {       co += (s[i] ==  1 );       ct += (s[i] ==  2 );       cz += (s[i] ==  0 );     }     if (cz == 0 || ct == 0) {       sort(s.begin(), s.end());       cout << s <<   n ;       return 0;     }     if (co == 0) {       cout << s <<   n ;       return 0;     }     string aux =   ;     int idx = -1;     for (int i = 0; i < n; i++) {       if (s[i] !=  1 ) aux += s[i];     }     string res =   ;     int occ = -1;     for (int i = 0; i < aux.size(); i++) {       if (aux[i] ==  2  && occ == -1) {         while (co--) {           res +=  1 ;         }         res += aux[i];         occ = 1;       } else {         res += aux[i];       }     }     cout << res <<   n ;     return 0;   }   