#include<stdio.h>
int n,v[20];
void afisare(int a)
{
	for(int i=1;i<a;i++)
		printf("%d ",v[i]);
	if(a>1) printf("\n");
}
void back(int s)
{
	afisare(s);
	v[s]=v[s-1]+1;
	while(v[s]<=n)
	{
		back(s+1);
		v[s]++;
	}
}
int main()
{
	freopen("submultimi.in","r",stdin);
	freopen("submultimi.out","w",stdout);
	scanf("%d",&n);
	back(1);
	return 0;
}