#include<iostream>
using namespace std;
int main(){
	int x,g,s,b,c,n;
	cin>>n;
	g=n%10;
	s=n/10%10;
	b=n/100%10;
	c=n/1000;
	x=g*1000+s*100+b*10+c*1; 
	cout<<x;
	 
} 
/**************************************************************
	Problem: 1029
	User: wngjinming
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/