#include<bits/stdc++.h> 
using namespace std;
int main(){
    int n,m,g,s;
    cin>>n;
    g=n%10;
    s=n/10;
    m=g*10+s;
    cout<<m;
}
/**************************************************************
	Problem: 1606
	User: xuezihong1
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/