Step 1

puts "The (L) Train, The (N) Train, The (S)ix Train"
puts "Choose a train line by letter."
selection = gets.chomp.to_s

if selection == "L"
	puts "You selected the L train."
elsif selection == "N"
	puts "You selected the N train."
elsif selection == "S"
	puts "You selected the Six Train."
else
	puts "That's not one of the choices."
end