secret-santa.rb

address_book = {
  "Chris" => "[email protected]", 
  "Ruth" => "[email protected]",
  "Pepper" => "[email protected]"
} 

givers = address_book.keys.shuffle
receivers = givers.rotate(1)

givers_receivers = givers.zip(receivers)

givers_receivers.each do |giver,receiver|
  giver_email = address_book[giver]
  puts "#{giver} <#{giver_email}> gives to #{receiver}"
end