#include <bits/stdc++.h>
using ll = long long;
#define MOD 1000000007
#define Mod 998244353
const int MAX = 1000000005;
const long long INF = 1000000000000000005LL;
using namespace std;

int main() {
    ll n;
    cin >> n;
    int m = (n%36 == 0 ? 36 : n%36);
    int a, b;
    for (int i = 8; i >= 1; i--) {
        if (m <= i) {
            a = 9 - i;
            b = a + m;
            break;
        }
        m -= i;
    }
    string ans;
    ans.push_back('0'+a);
    for (int i = 0; i < (n - 1)/36 + 1; i++) ans.push_back('0'+b);
    cout << ans << endl;
}