#include <fstream>
using namespace std;
int n, p, v[20];
ofstream cout("combinari.out");
void afisare()
{
	for (int i = 1; i <= p; i++)
		cout << v[i] << " ";
	cout << "\n";

}
void BK(int k)
{
	for (int i = v[k-1] + 1; i <= n; i++)
	{
		v[k] = i;
		if (k == p) afisare();
		else BK(k + 1);
	}
}
int main()
{
	ifstream cin("combinari.in");
	cin >> n >> p;
	BK(1);
	return 0;
}