in c$++$ Use a do$-$while loop to perform an input validation

Assignment: Imagine you are creating a basic interface for a library management system. The system should continuously prompt the user to choose an action until they decide to exit. The actions could be adding a book, searching for a book, or exiting the system. For simplicity, the user will input $"$A$"$ to add a book, $"$S$"$ to search, and $"$E$"$ to exit.

Given a string variable choice that has been declared, write a code snippet that repeatedly reads a value from the console into choice. The program should continue prompting the user until $"$E$"$ or $"$e$"($for "Exit"$)$ is entered. If $"$A$"$ or $"$a$"$ is entered, print "Add Book

$".$ If $"$S$"$ or $"$s$"$ is entered, print "Search Book

$".$ For any other input, the program should ask for input again.

Enter your choice $($A$/$S$/$E$)$: a

Add Book

Enter your choice $($A$/$S$/$E$)$: S

Search Book

Enter your choice $($A$/$S$/$E$)$: x

Enter your choice $($A$/$S$/$E$)$: E

Note: Write the lines of code necessary to capture and validate only the user input. You do not need to write a complete program. You must use the do while loop in this exercise.