#include <stdio.h>
#define NMAX 20

int v[NMAX],n,k;

void wtf(int p, int l)
{
	int i;
	if (p==k)
	{
		for (i=0; i<k-1; i++)
			printf("%d ",v[i]);
		printf("%d\n",v[k-1]);		
	}
	else
	{
		for (i=l+1; i<=n; i++)
		{
			v[p]=i;
			wtf(p+1,i);
			v[p]=0;
		}
		
	}	
}

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