Define a custom exception InsufficientFundsException that inherits from Exception and takes a message. Read a balance and a withdrawal amount. If the amount is greater than the balance, throw the custom exception with message Insufficient funds; otherwise print New balance: <balance - amount>. Catch it and print ex.Message. Declare the class after the top-level statements.

Input 100 then 40 prints: New balance: 60
Input 100 then 150 prints: Insufficient funds