#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b,c,n,z;
    cin>>n;
    a=n%10;
    b=n/10%10;
    c=n/100;
    if(a>b&&a>c&&b>c){
    	z=a*100+b*10+c;
    }if(a>b&&a>c&&c>b){
    	z=a*100+c*10+b;
    }if(b>a&&b>c&&a>c){
    	z=b*100+a*10+c;
    }if(b>c&&b>a&&c>a){
    	z=b*100+c*10+a;
    }if(c>a&&c>b&&b>a){
    	z=c*100+b*10+a;
    }if(c>a&&c>b&&a>b){
    	z=c*100+a*10+b;
    }
    cout<<z;
}
/**************************************************************
	Problem: 1042
	User: sucongyi
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/