#include<bits/stdc++.h>
using namespace std; 
int main(){
	int x,g,s,b,q;
	cin>>x;
	g=x%10;
	s=x/10%10;
	b=x/100%10;
	q=x/1000;
	cout<<g<<s<<b<<q;
} 
/**************************************************************
	Problem: 1029
	User: chenjiahui
	Language: C++
	Result: Wrong Answer
****************************************************************/