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.

Example input: Andorra
Example output: .ad
Example explanation: .ad is the TLD of the country called Andorra.
Q: Bhutan
A:
.bt