Phone Number Validator

Question

You are given a number input, and need to check if it is a valid phone number.
A valid phone number has exactly 8 digits and starts with 1, 8 or 9.
Output "Valid" if the number is valid and "Invalid", if it is not.

Answer 1

Please link your attempt with question first and tag a programming language.

Answer 2

Solution :
https://code.sololearn.com/ca25rLyNs3AH/?ref=app