class Contact: def init(self, name, phone, email): self.name = name self.phone = phone self.email = email

def display(self, index):
    print(f"|   {index:<4} | {self.name:<15} | {self.phone:<12} | {self.email:<20} |")

def print_header(): print("\n" + "═" * 70) print(" 📇 CONTACT DIRECTORY") print("═" * 70) print("| S.No | Name | Phone No | Email |") print("|--------|-----------------|--------------|------------------------|")

def main(): contacts = []

while True:
    print_header()
    for idx, contact in enumerate(contacts, start=1):
        contact.display(idx)

    print("═" * 70)
    print("Options:")
    print("[1] Add New Contact   [2] Search Contact")
    print("[3] Delete Contact    [4] Exit")
    print("═" * 70)
    try:
        choice = int(input("Enter your choice: "))
    except ValueError:
        print("⚠ Invalid input. Please enter a number.")
        continue

    if choice == 1:
        name = input("Enter Name: ")
        phone = input("Enter Phone: ")
        email = input("Enter Email: ")
        contacts.append(Contact(name, phone, email))
        print("✅ Contact added successfully!")

    elif choice == 2:
        search_name = input("Enter name to search: ").lower()
        found = False
        for idx, contact in enumerate(contacts, start=1):
            if search_name in contact.name.lower():
                print("🔍 Contact Found:")
                contact.display(idx)
                found = True
        if not found:
            print("❌ No contact found with that name.")

    elif choice == 3:
        try:
            del_index = int(input("Enter contact number (S.No) to delete: "))
            if 1 <= del_index <= len(contacts):
                to_delete = contacts[del_index - 1]
                print("Are you sure you want to delete this contact?")
                to_delete.display(del_index)
                confirm = input("Type 'yes' to confirm: ").lower()
                if confirm == 'yes':
                    contacts.pop(del_index - 1)
                    print("🗑 Contact deleted successfully!")
                else:
                    print("❌ Deletion cancelled.")
            else:
                print("❌ Invalid contact number.")
        except ValueError:
            print("⚠ Please enter a valid number.")

    elif choice == 4:
        print("👋 Exiting... Thank you for using Contact Directory!")
        break

    else:
        print("⚠ Invalid choice. Please try again.")

if name == "main": main()