#!/usr/local/bin/ruby

require 'pp'


true_ans = ["c", "b", "c"]


ans = []
("a".."z").each do |char|
while true_ans[0] == ans[0] do
	ans[0] = char
	pp ans[0]
	if true_ans[0] == ans[0]
		puts "ok"
	elsif
		puts "ng"
	end
end
end