#include<stdio.h>
const int N=19;
int n,sol[N],k;
void afisare ()
{
	for (int i=1 ; i<=k ; ++i)
		printf ("%d ",sol[i]);
	printf ("\n");
}
void bkt (int p)
{
	if (p==k+1)
	{
		afisare();
		return;
	}
	for (int i=1+sol[p-1] ; i<=n-k+p ; ++i)
	{
		sol[p]=i;
		bkt(p+1);
	}
}
int main () {
	freopen ("combinari.in","r",stdin);
	freopen ("combinari.out","w",stdout);
	scanf ("%d",&n);
	scanf ("%d",&k);
	bkt(1);
	return 0;
}