Two friends, A and B, are catching up for the first time in a long while.

A: I got married and have 3 kids now.

B: That's great! How old are they?

A: The product of their ages is 72, and the sum of their ages is twice the age of your child.

B: Hmm, I still don't know how old they are.

A: My eldest kid just started taking piano lessons.

B: Oh I now I know how old they are.

How old are person A's kids?

Enter the ages in descending order, separated by a comma (ex: 3,2,1)

Difficulty: 10/10