#include <stdio.h>
#include <vector>
#include <algorithm>
#include <math.h>
 
using namespace std;

int n, k;

vector<int> solution;

void solve( int p) {

	if (solution.size() == k) {
		for (auto x : solution) {
			printf("%d ", x + 1);
		}
		printf("\n");
		return;
	}

	for (int i = p; i < n; ++i) {
		solution.push_back(i);
		solve(i + 1);
		solution.pop_back();
	}
}

int main() {
	freopen("combinari.in", "r", stdin);
	freopen("combinari.out", "w", stdout);

	scanf("%d %d", &n, &k);

	solve(0);

	return 0;
}