It's not called forefingers, thumbs. It's called for forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, forefingers, and so on.