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

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int N; cin >> N; N--;
    int M = 36;
    int l = N / 36;
    int r = N % 36;
    for (int a = 1; a < 9; a++) {
        for (int b = a + 1; b < 10; b++) {
            if (r-- == 0) {
                cout << string(1, a + '0') + string(l + 1, b + '0') << "\n";
                break;
            }
        }
    }
    return 0;
}