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.

[EX Q]: Nigeria
[EX A]: .ng

[EX Q]: Norway
[EX A]: .no

[EX Q]: São Tomé and Príncipe
[EX A]:
.st

