// PR Bab 05, soal 4 -- pembahasan.

#include <iostream>
using namespace std;

int main() {
    int n;
    cin >> n;

    for (int baris = 1; baris <= n; baris++) {
        for (int kolom = 1; kolom <= baris; kolom++) {
            cout << kolom;
        }
        cout << "\n";
    }
    return 0;
}