#include <cstdio>

int n,sol[100],k; 
char marcare[20];

void afisare()
{
	int i;
	for ( i=1 ; i<=k ; i++ )
		printf("%d ",sol[i]);
	printf("\n");
	
}
void bkt(int p)
{
	int i;
	if (p==k+1)
	{
		afisare();
		return ;
	}
	for (i=sol[p-1]+1;i<=n;i++)
	{
		if (!marcare[i])
		{
			sol[p]=i;
			marcare[i]=1;
			bkt(p+1);
			marcare[i]=0;
		}
	}
}

int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&k);
	bkt(1);
	return 0;
}