#include<stdio.h>
int n,sol[201],k;
void afisare();
void bkt(int p)
{
		afisare();
	for(int i=sol[p-1]+1;i<=n;++i)
	{
		sol[p]=i;
			bkt(p+1);
			sol[p]=0; // by Milu Alexandru Andrei aka pisoi
	}
}
void afisare()
{
	for(int i=1;i<=n;++i)
		if(sol[i]!=0)
		printf("%d ",sol[i]);
	printf("\n");
}
int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	bkt(1);
	return 0;
}