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

#アイディア=========
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#アイディア=========

#プログラム==========
require 'csv'
trivia = CSV.read("trivia.csv")
puts("豆知識辞典")
x = []
for i in trivia
  x << i[0]
end
y = 0
for i in x
  printf("%s(%d)",i,y)
  y += 1
end
z = -1
while z < 0 || x.length >= z
  z = gets.chomp.to_i
end
puts trivia[z]





























































































#プログラム=========