#include<iostream>
using namespace std;
int main(){
	int san;
	cin>>san;
	while(true){
		int ge=san/10;
		int shi=san/10%10;
		int bai=san/10/10;
		if(ge>shi&&shi>bai){
			san=ge*100+shi*10+bai;
		}
		else if(ge>bai&&bai>shi){
			san=ge*100+bai*10+shi;
		}
		else if(shi>ge&&ge>bai){
			san=shi*100+ge*10+bai;
		}
		else if(shi>bai&&bai>ge){
			san=shi*100+bai*10+ge;
		}
		else if(bai>shi&&shi>ge){
			san=san;
		}
		else{
			san=bai*100+ge*10+shi;
		}
		
	}
	return 0;
}