### Challenge for If Statement

### Challenge

You are working on the Collatz Conjecture, an unsolved problem in math.

You will be given one number `a`

as input. If `a`

is even, return half of `a`

(a / 2). If `a`

is odd, return 3 * a + 1.

For example, when given `5`

return `16`

, and when given `16`

, return `8`

.

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