#include<stdio.h>
int const N=1<<16;
int sol[N],n;

void prelucrare(int nr)
{
	for(int i=1;i<=nr;i++)
		printf("%d ",sol[i]);
	if(nr!=0) printf("\n");
}

void bkt(int p)
{
	prelucrare(p-1);
	for(int i=1+sol[p-1];i<=n;i++)
	{
		sol[p]=i;
		bkt(p+1);
	}
}

int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	bkt(1);
	
}