#include<fstream>
#include<iostream>

using namespace std;

int n, k, a[19];

void ReadData()
{
	ifstream fin("combinari.in");
	fin>>n;
	fin>>k;
	fin.close();
}


void Combinari(int p)
{
	ofstream fout("combinari.out");
	if(p==k+1) 
		{for(int i=1;i<=k;i++)
		    fout<<a[i]<<" ";
	     fout<<"\n";
		}
	else for(int i=a[p-1]+1;i<=n;i++)
	{
		a[p]=i;
		Combinari(p+1);
	}
	fout.close();
}

int main()
{
	ReadData();
	Combinari(1);
	return 0;
}