#include <fstream>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, m, st[20];

void Display()
{
	for (int i = 1;i <= m;++i)
		fout << st[i] << " ";
	fout << "\n";
}

void Back(int k)
{
	if (k > m)
	{
		Display();
		return;
	}
	for (int i = st[k - 1] + 1;i <= n - (m - k);++i)
	{
		st[k] = i;
		Back(k + 1);
	}
}


int main()
{
	fin >> n >> m;
	Back(1);
	fin.close();
	fout.close();
	return 0;
}