#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,v[19];
void back(int l)
{
	int i;
	if (l==k)
	{
		for (i=1;i<=k;i++)
			fout<<v[i]<<" ";
		fout<<"\n";
	}
	else
		for (i=v[l]+1;i<=n;i++)
		{
			v[l+1]=i;
			back(l+1);
		}
}
int main()
{
	fin>>n>>k;
	back(0);
	return 0;
}