#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
require'csv'

y=[
  "a",
  "b",
  "c",
  "d"
]

jikken={
  "a"=>"あ",
  "b"=>"い",
  "c"=>"う",
  "d"=>"え"
}

x=rand(y.length)
printf("%sが出たよ\n",y[x])
if y[x] == a
  z=gets.chomp
  if z == "あ"
    puts"正解!"
  else
    puts"残念"
  end
end