In some countries, phone numbers consist of an area code made up of two digits and a local number made up of seven digits. Below are the requirements for 9-digit number:
- The area code can be made up of any digit other than 9
- The first digit of the local number cannot be 0
- Digits 2 - 7 can be any number.
Given the requirements above, how many possible phone-number combinations can these countries have?