#include <fstream>

using namespace std;

int sol[19];
int nr, n, p;

ofstream fout("combinari.out");

void citire() {
	ifstream fin("combinari.in");
	fin >> n >> p;
}

void afisare() {
	for (int i = 1; i <= p; i++)
		fout << sol[i] << " ";
	fout << endl;
}

void back(int k) {  
	if (k > p) {
		afisare();
		return;
	}  
    for(int i = sol[k-1] + 1; i <= n - p + k; i++) { 
		sol[k] = i;
		back(k+1);
    }  
}

int main() {
	sol[0]=0;
	citire();
	back(1);
	fout.close();
	return 0;

}