#include<fstream>
using namespace std;
int v[20],n,k;
ofstream out("combinari.out");
void citire()
{
	ifstream in("combinari.in");
	in>>n>>k;
}
void afis()
{
	int i;
	for (i=1;i<=k;i++)
		out<<v[i]<<" ";
	out<<'\n';
}
void bkt(int pas)
{
	int i;
	if (pas==k+1)
		afis();
	else
	{
		for (i=v[pas-1]+1;i<=n;i++)
		{
			v[pas]=i;
			bkt(pas+1);
		}
	}
}
int main()
{
	citire();
	bkt (1);
}