show_superclass.rb

word = $stdin.gets.chomp
n = eval(word)

limit = n.ancestors.length - 1
class_array = []

for i in 0..limit
	class_array << n.ancestors[i] if n.superclass != nil
end

num = class_array.length - 1

class_array.each do |value|
	puts "#{num} : #{value}"
	num -= 1
end