#include<fstream.h>
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n,sol[17];
void back(int k)
{
	int i;
	if(k<=n+1 && k!=1)
	{
		for(i=1;i<k;++i)
			g<<sol[i]<<" ";
		g<<"\n";
		if(k==n+1)
			return;
	}
	for(i=sol[k-1]+1;i<=n;++i)
	{
		sol[k]=i;
		back(k+1);
	}
}
int main()
{
	f>>n;
	back(1);
	f.close();
	g.close();
	return 0;
}