> ┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘┌|∵|┘

 ┌|∵|┐
|∵|　|∵|
 └|∵|┘

参考：2004/04/08(木)14時55分51秒