instruction:
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.
question:
Cambodia
answer:
.kh


question:
Guinea
answer:
.gn


question:
Switzerland  
answer:

.ch