#include <bits/stdc++.h>
using namespace std;
int main(){
	int q,w,e,r; 
	cin>>q;
	w=q%10;
	e=q/10%10;
	r=q/100%10;
	cout<<q+w*100+e*10+r;
	return 0;
	}

/**************************************************************
	Problem: 1020
	User: ljl2
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/