func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s, x;     cin >> s;     int count = 0, sz = s.size();     for (int i = 0; i < sz; ++i)       if (s[i] ==  1 ) ++count;     for (int i = 0; i < sz; ++i) {       if (s[i] ==  0 )         x +=  0 ;       else if (s[i] ==  2 ) {         while (count-- > 0) x +=  1 ;         x +=  2 ;       }     }     while (count-- > 0) x +=  1 ;     cout << x;     return (0);   }   