In this task, you are given a country name and you need to return the Top Level Domain (TLD) of the given country. The TLD is the part that follows immediately after the "dot" symbol in a website's address. The output, TLD is represented by a ".", followed by the domain.

Q: Hong Kong

A: .hk
****
Q: Trinidad and Tobago

A: .tt
****
Q: Afghanistan

A:
.af
****