#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    ll n;
    cin >> n;
    ll md = 9'999'999'999ll % n;
    string ans(10, '9');
    if(md == 0){
        cout << ans << '\n';
        return 0;
    }
    for(int i = 11; i < 2000; i++){
        ans += '9';
        md *= 10;
        md += 9;
        md %= n;
        if(md == 0){
            cout << ans << '\n';
            return 0;
        }
    }
}