#include<bits/stdc++.h>
using namespace std;
int main() {
	int n,i=0,j=0,h=0;
	cin>>n;
	i=n%10*10;
	j=n/10;
	h=i+j;
	cout<<h;
    return 0;
}
/**************************************************************
	Problem: 1606
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/