// combinari.cpp : Defines the entry point for the console application.
//

#include <stdio.h>
int e[20],n,k;

void afisare()
{
	for(int i=1;i<=k;i++)
		printf("%d ",e[i]);
	printf("\n");
}
void back(int a)
{
	if(a==k+1)
	{
		afisare();
		return ;
	}
	for(int i=e[a-1]+1;i<=n+a-k;i++)
	{
		e[a]=i;
		back(a+1);
	}
}
int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&k);
	back(1);
	return 0;
}