contacts={}
print("\t \t Welcome to the Contact Book \t \t \n")
run=True
while run:
    print("Choose your option from below: \n 1.ADD CONTACT \t 2.SEARCH CONTACT \t 3.DELETE CONTACT \t 4. ALL CONTACTS \n")
    choice=input("Enter the option/number you want to perform: ")
    
    #ADD
    
    if choice.upper() in ["1", "ADD CONTACT", "ADD"]:
        print("\n \t \t ******* ADDING CONTACTS ******* \t \t \n")
        n1=int(input("ENTER HOW MANY CONTACTS YOU WOULD LIKE TO ADD IN THE CONTACT BOOK: "))
        for i in range(n1):
            contact_name = input("\n ENTER THE CONTACT'S NAME: ")
            contact_num = int(input("ENTER THE CONTACT'S NUMBER: "))
            contacts.setdefault(contact_name.title(), contact_num)
        print("\n \t \t SUCESSFULLY ADDED THE CONTACT!! ")
        
    #SEARCH
    elif choice.upper() in ["2", "SEARCH CONTACT", "SEARCH"]:
        print("\t \t ****** SEARCHING CONTACTS ****** \t \t \n")
        search_name=input("ENTER THE NAME YOU WANT TO FIND IN THE CONTACT BOOK: ").title()
            
        if search_name in contacts:
            print(f"CONTACT NAME IS AVALIABLE: \t {search_name} - {contacts[search_name]}")
        else:
            print("THE NAME WAS NOT AVALIABLE IN THE CONTACT BOOK ")

    #DELETE
    elif choice.upper() in ["3", "DELETE CONTACT", "DELETE"]:
        print("\n \t \t ****** DELETING CONTACTS ****** \t \t \n ")
        print(contacts)
        delete_name=input("ENTER THE NAME YOU WANT TO DELETE IN THE CONTACT BOOK: ").title()
        
        if delete_name in contacts:
            print(f"\n THE CONTACT WITH {delete_name},{contacts.pop(delete_name)} IS DELETED!!")
        else:
            print("THE NAME WAS NOT AVALIABLE IN THE CONTACT BOOK")
            
    #DISPLAY ALL
    elif choice.upper() in ["4","ALL CONTACT", "ALL", "DISPLAY ALL","DISPLAY","SHOW ALL"]:
        print("\n \t \t ****** ALL CONTACTS DISPLAY ****** \t \t \n ")
        print(contacts)
        print("\n")
        for i in contacts:
            print(f"{i} - {contacts.get(i)}")
    #INVALID
    else:
        print("Not Valid Option")
        
    #TO CHECK IF THE USER WANTS TO PERFORM THE TASK AGAIN
    while run:
        exit = input("WOULD YOU LIKE TO DO ANY OTHER OPERATIONS IN THE CONTACT BOOK *y/n*: ")
                    
        if exit.lower() in ["yes", "y"]:
            run=True
            break
        elif exit.lower() in ["no","n","exit"]:
            print("Thank you for using this Contact Book!! ")
            run=False
        else:
            print("It is a invalid Input\nPlease use this format (Yes/No) ")
            run=True