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