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.

Let me give you an example: Andorra
The answer to this example can be: .ad
Here is why: .ad is the TLD of the country called Andorra.

OK. solve this:
Rwanda
Answer:
.rw