2-3-5-6 Fun I don't like to give away solutions, but I don't mind helping past frustrations either.
That being said, if you're struggling with finding a place to start, just remember it's elementary...
I won't dance around the problem for a while, so you can think it through yourself. Don't hesitate to call on me for a hand should you need it.
From the clock's chime to the cock's crow it but an instant
I shall return later.