#include <bits/stdc++.h>
using namespace std;
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
typedef long long ll;
// Welcome to my source code!

int main() {
    int n;
    cin >> n;
    int i = n, j = 1;
    if (n == 10) j++;
    for (; i >= j; i--) cout << i;
    cout << endl;
}