# coding: utf-8
puts "問題"
puts "今の3つ前の元号は何でしょうか?"
puts "1:昭和"
puts "2:平成"
puts "3:令和"
puts "4:大正"
print "答えを入力:"
kotae = gets.chomp.to_i
if kotae == 1
  puts "不正解"
elsif kotae == 2
 puts "不正解"
elsif kotae == 3
 puts "不正解!"
elsif kotae == 4
 puts "正解!!"
end