choice = input()
    if choice not in ["1", "2", "3", "4", "5", "6", "7"]:
        print("enter correct choice  \n")
        continue
    else:
        choice = int(choice)
        if choice == 1:
            print("books available {} ".format(Book.name))
            Book.display_books()
            print("\n")

        elif choice == 2:
            book = input("name of book you want to issue")
            student = input("enter your name")
            m1.issue_book(book, student)
            print("\n")

        elif choice == 3:
            book = input("name of book you want to return")
            student = input("enter your name")
            m1.return_book(book, student)

        elif choice == 4:
            book_name = input("enter the name of the book")
            Catalog.searchbyname(book_name)
            print("\n")

        elif choice == 5:
            author = input("enter the name of the author")
            Catalog.searchbyauthor(author)
lib.removeBook("Crack coding round")
lib.viewBooks()


member1 = Member("Ashwani Devesh Kashyap", "Mumbai", 23, "ADK4321", "NESS4321")
member2 = Member("Shivani Kashyap", "Surat", 19, "SK1234", "MSU8765")
member3 = Member("Navneet Kashyap", "Patna", 21, "NK9876", "JSPM1715")
print(member1)
print(member2)
print(member3)
member1.viewBooks()
member1.search_by_book_name("Theory of everything")
member1.search_by_book_name("The magic of thinking big")
member1.search_by_author_name("Stephen Hawking")
member1.search_by_author_name("JK rowling")
member1.issue_book("Theory of everything", 8)
member2.issue_book("Crack IELTS", 10)
member1.viewBooks()

lib.view_issued_books()

member1.return_book("001ac")
member1.viewBooks()

member2.issue_book("Crack IELTS")

lib.viewMembers()

lib.removeMember("Navneet")
member1.issue_book("Crack IELTS")
lib.viewMembers()