diff --git a/aidea.rb b/aidea.rb
new file mode 100755
index 0000000..a133c0b
--- /dev/null
+++ b/aidea.rb
@@ -0,0 +1,12 @@
+#!/usr/bin/env ruby
+#-*-coding: utf-8 -*-
+
+def janken()
+  te = ["✊グー","✌チョキ","✋パー"]
+  te[rand(te.length)]
+end
+
+puts"ジャーンケーン"
+sleep(1)
+printf("%s!\n",janken)
+