#include<cstdio>
using namespace std;
short int a[17];
int n;
void afisare(int k)
{
	for(int i=1;i<=k;i++)
		printf("%d ",a[i]);
	printf("\n");
}
void back(int k)
{
	int i;
	for(i=a[k-1]+1;i<=n;i++)
	{
		a[k]=i;
		afisare(k);
		if(k<n)
			back(k+1);
	}
}
int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	back(1);
	return 0;
}