#include<stdio.h>
int n,k;
int sol[17];

void afisare()
{
	for(int i=1;i<=k;++i)
		printf("%d ",sol[i]);
	printf("\n");
}


void bkt (int p)
{
	if(p==k+1)
	{
		afisare();
		return;
		
	}
	for(int i=(sol[p-1] +1); i<=(n-k+p);++i)
	{
		sol[p] = i;
		bkt(p+1);
	}
}
int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	
	scanf("%d",&n);
	
	for(int i=1;i<=n;i++)
	{
		k=i;
		bkt(1);
	}
	
	return 0;
}