#include<cstdio>
using namespace std;
int i,k,n,x[18];
void back()
{
	k=1;
	x[k]=0;
	while(k>0)
	{
		while(x[k]<n&&k<=n)
		{
			x[k]++;
			for(i=1;i<=k;i++)
				printf("%d ",x[i]);
			printf("\n");
			k++;
			x[k]=x[k-1];
		}
		k--;
	}
}
int main()
{
freopen("submultimi.in","r",stdin);
freopen("submultimi.out","w",stdout);
scanf("%d",&n);
back();
return 0;
}