#include <iostream>
using namespace std;

int main() {
    int n;
    cin >> n;
    int reversed_num = (n % 10) * 10 + n / 10;
    cout << reversed_num << endl;
    return 0;
}    
/**************************************************************
	Problem: 1606
	User: fuyijun
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/