#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i=0,c=0,a=0;
    cin>>n;
    i=n%10;
    c=n/10;
    a=i*10+c;
    cout<<a;
    }
/**************************************************************
	Problem: 1606
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/