#include<stdio.h>

int a[20],ok[20],n,k;

void bk(int);

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

void bk(int x)
{
	int i;
	
	if(x==k+1)
	{
		for(i=1;i<=k;i++)
			printf("%d ",a[i]);
		printf("\n");
	}
	else
	{
		for(i=a[x-1];i<=n;i++)
			if(ok[i]==0)
			{
				ok[i]=1;
				a[x]=i;
				bk(x+1);
				ok[i]=0;
			}
	}
}