#include<fstream>
using namespace std;
short n,k,v[20],uz[20];
ofstream fout("combinari.out");

void Back(short pas)
{
	short i,limita;
	if(pas==k+1)
	{
		for(i=1;i<=k;i++)
			fout<<v[i]<<' ';
		fout<<"\n";
	}
	else
	{
		limita=n-k+pas;
		for(i=v[pas-1]+1;i<=limita;i++)
		{
			if(uz[i]==0)
			{
				v[pas]=i;
				uz[i]=1;
				Back(pas+1);
				uz[i]=0;
			}
		}
	}
}

int main()
{
	ifstream fin("combinari.in");
	fin>>n>>k;
	fin.close();
	Back(1);
	fout.close();
	return 0;
}