#include <stdio.h>
using namespace std;
#define nmax 20

int st[nmax];
int N, K;

void afisare ()
{
	int i;
	for (i = 1; i <= K; ++i) printf("%d ", st[i]);
	printf("\n");
}

void back(int p)
{
	int i;
	if (p == K + 1) afisare ();
		else
			for (i = st[p-1]+1; i <= N; ++i) { st[p] = i; back(p+1); }
}
int main ()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d", &N, &K);
	back(1);
	return 0;
}