In this problem, you will create a program that stores name-and-phone-number pairs into a LinkedHashMap in registration order, then displays the full list and total count to standard output.

Map Management: Phonebook

Learning Objective: Manage key-value pairs with LinkedHashMap, perform data storage, retrieval, and listing

HashMap is data structure storing "key (identifier) and value (data)" pairs. Like phonebook, can manage relationships like "name → phone number". Add pairs with put() method, retrieve corresponding value from key with get() method. Check key existence with containsKey().

Input

Line 1: Number of registrations (integer, 1-10 people)
Lines 2~N+1: Name and phone number (space-separated)

Output

Phonebook:
[name 1]: [phone number 1]
[name 2]: [phone number 2]
...
Total Contacts: [registration count]
```java

Contacts displayed in registration order.