package test1; import java.util.*; public class Main {     public static void main(String[] args)throws Exception     {         Scanner sc = new Scanner(System.in);         String str = sc.nextLine();         int[] num = new int[10];         for(int i = 0;i<str.length();i++)         {             num[str.charAt(i)-'0']++;         }         num[0]++;         int j = findMin(num);         if( j == 0) {             System.out.print(1);             int count = num[j] - 1;                 while(count-- >= 0)                     System.out.print(0);             return;         }else{             int count = num[j];             while(count-- >= 0)                 System.out.print(j);             return;         }     }     static int findMin(int[] a) {         int num = a[0];         int j = 0;         for(int i = 1; i < 10; ++i) {             if(num > a[i]) {                 num = a[i];                 j = i;             }         }         return j;     } }