#define _CRT_SECURE_NO_DEPRECATE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

int main(){
	assert(freopen("submultimi.in", "r", stdin));
	freopen("submultimi.out", "w", stdout);

	int N;
	scanf("%d\n", &N);

	for (int i = 1; i <= N; ++i)
		for (int j = i; j; --j){
			for (int k = j; k <= i; ++k)
				printf("%d ", k);
			printf("\n");
		}

	return 0;
}