diff --git a/a.rb b/a.rb
deleted file mode 100755
index 05632da..0000000
--- a/a.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/usr/bin/env ruby
-# -*- coding: utf-8 -*-
-
-while true
diff --git a/ti-mu.rb b/ti-mu.rb
index dd307f6..2cd3862 100755
--- a/ti-mu.rb
+++ b/ti-mu.rb
@@ -7,7 +7,7 @@
 2:問題
 3:終わる"
 
-sansu = gets.to_i
+sansu=gets.to_i
 
 if sansu == 1
   puts"どの公式を見る?"
@@ -19,15 +19,16 @@
   puts"どの図形の公式を知りたい?"
   i = gets.to_i
   printf("この図形の公式は%sだよ!\n",kousiki[i])
+  sleep(3)
 redo
 
 
 elsif sansu== 2
   puts"問題!"
-  mondai = ["一辺が6cmの正方形の面積は?","縦が4cm、横が9cmの長方形の面積は?","底辺が9cm、高さが4cmの平行四辺形の面積は?","8","4","6","",""]
+  mondai = ["一辺が6cmの正方形の面積は?","縦が4cm、横が9cmの長方形の面積は?","底辺が9cm、高さが4cmの平行四辺形の面積は?","あ","い","う","え","お"]
   l = rand(mondai,8)
   printf("%s\n",mondai[l])
-  ll = gets.to_i
+  ll=gets.to_i
   if ll == 36
     puts"正解!!"
   end