#include<cstdio>
const short N=19;
short k,n,sol[N];
void prelucrare()
{
	for(int i=1;i<=k;i++)
		printf("%hd ", sol[i]);
	printf("\n");
}
void bkt(int p)
{
	if(p-1==k)
	{
		prelucrare();
		return;
	}
	for(int i=1+sol[p-1];i<=n-k+p;i++)
	{
		sol[p]=i;
		bkt(p+1);
	}
}
int main()
{
	freopen("combinari.in", "r", stdin);
	freopen("combinari.out", "w", stdout);
	scanf("%hd%hd", &n,&k);
	bkt(1);
}