#include <stdio.h>
#define NMAX 17
int n,A[NMAX],r;
void show()
{
	int i;
	for (i=1; i<=r; i++)
		printf("%d ",A[i]);
	printf("\n");
}
void back(int k)
{
	if (k==n+1)
	{
		if (r)
			show();
		return ;
	}
	A[++r]=k; 
	back(k+1);
	r--;
	back(k+1);
}
int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	back(1);
	return 0;
}