#include <cstdio>

int n,nr=-1,v[22];

void back()
{
	int i;
	for(i=1;i<=v[0];i++)
		printf("%d ",v[i]);
	if(v[0])
		printf("\n");
	for(i=v[v[0]]+1;i<=n;i++)
	{
		v[++v[0]]=i;
		back();
		v[v[0]]=0;
		v[0]--;
	}
}

int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	back();
	return 0;
}