import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String N = sc.next();
        String r = rep(N);
        System.out.println(r);
    }
    static String rep(String S){
        String [] arr = S.split("");
        int max = 0;
        int c = 0;
        int z = arr.length;
        int [] t = new int [z];
        for(int i=0; i<z; i++){
            t[i]=Integer.parseInt(arr[i]);
            max=Math.max(max,t[i]);
            if(max==t[i]){
                c=i;
            }
        }
        if(max==t[0]){
            if(z==2){
                return S;
            }
            String x = arr[0]+rep(S.substring(1));
            return x;
        }else{
            String x = arr[c];
            arr[c]=arr[0];
            for(int i=1; i<z; i++){
                x=x+arr[i];
            }
            return x;
        }
    }
}