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

kotae = 0
i = 0
while i<10
  x = rand(900)+100
  kotae += x
  printf("\r%d ", x)
  sleep(0.8)
  printf("\r     ")
  sleep(0.2)
  i += 1
end
print "\r答は: "
a = gets.to_i
if a == kotae
  puts("正解!!")
else
  printf("ざんねん!!\n正解は %d\n", kotae)
end