#include <cstdio>

int N, K, S[32];

void back(int k, int l) {
	int i;

	if (k == K) {
		for (i = 0; i < K; ++i)
			printf("%d ", S[i]);
		printf("\n");
	} else
		for (i = l + 1; i <= N; ++i) {
			S[k] = i;
			back(k+1, i);
		}
}

int main(void) {
	freopen("combinari.in", "rt", stdin);
	freopen("combinari.out", "wt", stdout);

	scanf(" %d %d", &N, &K);

	back(0, 0);

	return 0;
}