I'm not doin mine backwards because I don't think I've even eaten five different kinds of cereal in the last decade.
1. Cheerios
2. Honey Nut Cheerios
3. Oatmeal Crisp: Almond
4. Harvest Crunch? I think is a cereal? I put it in yogourt tho, not milk.
I can't think of a 5th. Maybe Corn Pops but I legit haven't had those since I was 13 so I bet I'd find them disgusting now.