#include<stdio.h>
int n,k,sol[20];
void scrie()
{
	for(int i=1; i<k; i++)
		printf("%d ",sol[i]);
	printf("%d\n",sol[k]);
}
void back(int m)
{
	if(m==k+1)
	{
		scrie();
		return;
	}
	//int i;
	for(int i=sol[m-1]+1; i<=n; i++)
	{
		sol[m]=i;
		back(m+1);
	}
}
int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&k);
	back(1);
	return 0;
}