#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,c;
	cin>>a;
	b=a%10*10;
	c=a/10;
	cout<<b+c;
	
}
/**************************************************************
	Problem: 1707
	User: linzihang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/