#include <iostream>

using namespace std;

void f(int n, int i = 1) {
	for (int j = 1; j <= i; ++j) {
		cout << i << " ";
	}
	cout << endl;
	if (i < n) {
		f(n, ++i);
	}
}

int main() {
	int n;
	cin >> n;
	f(n);
	return 0;
}