#include<stdio.h>
int n,nr=-1;
int a[22];
void back()
{
	int i;
	for(i=1;i<=a[0];i++)
		printf("%d ",a[i]);
	if(a[0])printf("\n");
	for(i=a[a[0]]+1;i<=n;i++)
	{
		a[++a[0]]=i;
		back();
		a[a[0]]=0;
		a[0]--;
	}
}
int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	back();
	return 0;
}