#---
# Excerpted from "Programming Ruby 3.2",
# published by The Pragmatic Bookshelf.
# Copyrights apply to this code. It may not be used to create training material,
# courses, books, articles, and the like. Contact us if you are in doubt.
# We make no guarantees that this code is fit for any purpose.
# Visit https://pragprog.com/titles/ruby6 for more book information.
#---
def say_hello_goodbye(name)
  result = "I don't know why you say goodbye, " + name + ", I say hello"
  return result
end

# call the method
puts say_hello_goodbye("John")
puts say_hello_goodbye("Paul")
