#include <stdio.h>

int main() {
	int i, j = 0, k, a[50], n, m;
	scanf("%d", &n);
	m = n;
	for (i = 1; i <= n * (n + 1) / 2; i++)
		a[i] = i;
	for (i = 1; i <= n * (n + 1) / 2; i++) {

		printf("%02d", a[i]);
		j++;
		if (j == m) {

			printf("\n");
			m--;
			j = 0;
		}
	}


	return 0;
}