/*
 ___   _   _    ___  __   ___ _  _     __   ____ ___ _  _   _
|__   /_\  |\ |  |  |  | |__  |__|     |_|  |__   |  |__|  /_\
___| /   \ | \|  |  |__| ___| |  |     |__| |___  |  |  | /   \

*/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll n;
    cin >> n;
    vector<ll> a(3, 0);
    ll i;
    for (i = 2; i >= 0; i--)
        a[i] = n % 10, n /= 10;
    for (auto i : a)
        cout << i;
    return 0;
}