Limits: 1s, 128 MB
East West University is organizing a programming contest today and the grumpy, angry moderator of the programming club is in action again. This year, the contest is individual and divided into two categories - Senior and Junior. However, the moderator wants to know how many teams of exactly three participants can be formed by considering both seniors and juniors. Teams will not have any mixing of junior and senior category participants.
This is a companion discussion topic for the original entry at https://toph.co/p/counting-is-difficult-iii