func_code_string: #include <bits/stdc++.h>   using namespace std;   string str, txt;   int main() {     while (cin >> str) {       int ind = -1;       int n = str.size();       for (int i = n - 1; i >= 0; i--)         if (str[i] ==  2 ) ind = i;       if (ind == -1) {         sort(str.begin(), str.end());         txt = str;       } else {         txt =   ;         for (int i = 0; i < ind; i++)           if (str[i] ==  0 ) txt +=  0 ;         for (int i = 0; i < n; i++)           if (str[i] ==  1 ) txt +=  1 ;         for (int i = ind; i < n; i++)           if (str[i] !=  1 ) txt += str[i];       }       cout << txt << endl;     }     return 0;   }   