#include <iostream>
#include <fstream>

using namespace std;

int A[20];

int N, K;

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


void back(int l) {
	if (l >= K) {
		for (int i = 0; i < K; ++i) {
			off << A[i] << " ";
		}
		off << endl;
	}
	else {
		int start = l < 0 ? 1 : A[l - 1];
		for (int i = start + 1; i <= N; ++i) {
			A[l] = i;
			back(l + 1);
		}
	}
}

int main() {
	iff >> N >> K;
	back(0);
}