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