#include <fstream>
#include <vector>
using namespace std;

ifstream in("combinari.in");
ofstream out("combinari.out");

void Disp(vector<int>& v, int K)
{
	for (int i = 1; i <= K; i++)
	{
		out << v[i] << ' ';
	}
	out << '\n';
}
void afiseazaCombinari(vector<int>& v, int p, int N, int K)
{
	if (p > K)
	{
		Disp(v, K);
		return;
	}
	for (int i = v[p - 1] + 1; i <= N - (K - p); i++)
	{
		v[p] = i;
		afiseazaCombinari(v, p + 1, N, K);
	}
}

int main()
{
	int N, K;
	in >> N >> K;
	vector<int> v(K + 1, 0);
	v[0] = 0;
	afiseazaCombinari(v, 1, N, K);
}