def greeter(first, last)
  name = first + last
  if %w{ ShereefBishay TonyPhillips AnneSpalding }.include? name
    "I love Dev Bootcamp!"
  elsif %w{ JesseFarmer RobertFletcher }.include? name
    "Will you look at the C source code for this with me?"
  else
    "Well hello there."
  end
end