#include <math.h>
#include <stdio.h>

long n, k, v[128];

void back(long level) {
	long i = 0;
	if (level == k) {
		for (i = 1; i <= k; ++i) {
			printf("%ld ", v[i]);
		}
		printf("\n");
	} else {
		for (i = v[level] + 1; i <= n; ++i) {
			v[level + 1] = i;
			back(level + 1);
		}
	}
}

int main() {
	freopen("combinari.in", "r", stdin);
	freopen("combinari.out", "w", stdout);
	scanf("%ld %ld\n", &n, &k);
	back(0);
	return 0;
}