[T0rajir0u]

1. n^2, induction (n^2 - (n-1)^2 = 2n-1 hmm dat luks liek da nth odd numbr 2 me lulz)
2. hehe multiply by 1 - 3 for an secret
3. after 3 draws you either have a pair or one of each so 4 draws ps this problem is stupidly easy
4. hehe add up da areas

lemme think about dat uthr wun