#include <bits/stdc++.h>   using namespace std;   const int mod = 998244353;   const int INF = 1e9 + 7;   const int N = 1010;   const double pi = 3.1415926;   int main() {     char str[100010];     while (~scanf( %s , str)) {       int len = strlen(str);       int idx = INF, sum0 = 0, sum1 = 0;       for (int i = 0; i < len; i++) {         if (str[i] ==  2 ) {           idx = i;           break;         }         if (str[i] ==  1 ) sum1++;         if (str[i] ==  0 ) sum0++;       }       for (int i = 0; i < sum0; i++) printf( 0 );       for (int i = 0; i < sum1; i++) printf( 1 );       sum1 = 0;       for (int i = idx; i < len; i++) {         if (str[i] ==  1 ) sum1++;       }       for (int i = 0; i < sum1; i++) printf( 1 );       for (int i = idx; i < len; i++) {         if (str[i] !=  1 ) printf( %c , str[i]);       }       printf(  n );     }     return 0;   }   