Setup Fork the FizzBuzz Then clone your fork to your computer if you are using mac. If you are using Windows use cloud9. How to run the FizzBuzz program Enter irb into the terminal Enter require '.lib/fizzbuzz' Enter (1..20).each {|number| puts "#{number} --> #{fizzbuzz(number)}"} How to exit the FizzBuzz program Type quit into the terminal to exit the FizzBuzz program or use Ctrl d.