Ping Pong!
A game of table tennis almost always sounds like Ping! followed by Pong!
You know that Player 2 won if you hear Pong! as the last sound (since Player 1 didn’t return the ball back).
Given an array of Ping!, create a function that inserts Pong! in between each element. Also:
- If win equals true, end the list with Pong!

- If win equals false, end the list with Ping!
Examples
<br>#Example 1<br>pingPong(["Ping!"], True)<br>output = ["Ping!", "Pong!"]<br><br>#Example 2<br>pingPong(["Ping!", "Ping!"], False)<br>output = ["Ping!", "Pong!", "Ping!"]<br><br>#Example 3<br>pingPong(["Ping!", "Ping!", "Ping!"], True)<br>output = ["Ping!", "Pong!", "Ping!", "Pong!", "Ping!", "Pong!"]<br>
Notes
- Player 1 serves the ball and makes Ping!.

- Return an array of strings.