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