#include <bits/stdc++.h>

using namespace std;

int main() {
    //cin读入优化
    std::ios::sync_with_stdio(false);

    int n;
    cin >> n;
    int a = n / 100;
    int b = (n - a * 100) / 10;
    int c = n % 10;
    //cout << a << " " << b << " " << c << " " << endl;
    cout << c << b << a << endl;
    return 0;
}