#include<bits/stdc++.h>
using namespace std;
int main(){
	int x,a,b;
	cin>>x; 
	a=x%10; 
	b=x/10;
	cout<<a*10+b*1;
}
/**************************************************************
	Problem: 1606
	User: chenjiahui
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/