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