nums = []
dubs = []

puts "I NEED SOME NUMBERS!"
print "1st number: "
num1 = $stdin.gets.chomp
print "\n2nd number: "
num2 = $stdin.gets.chomp
print "\n3rd number: "
num3 = $stdin.gets.chomp

nums.push(num1, num2, num3)
nums.each {|num| puts "You chose #{num}" }

puts "Let\'s double those!"

nums.each do |dub|
    num * 2
    dubs.push(dub)
end

dubs.each {|dub| puts "The new numbers are #{dubs}" }