#include <bits/stdc++.h>
using namespace std;
int g;
int s;
int b;
long long n;
int main(){
	cin>>n;
	g=n%10;
	s=n/10%10;
	b=n/100%10;
//	cout<<g<<s<<b;
    cout<<n+100*b+10*s+g;
	return 0;
}

/**************************************************************
	Problem: 1020
	User: zengdongxin
	Language: C++
	Result: Wrong Answer
****************************************************************/