> ┏━┯━┯━┯━┯━┯━┯━┯━┓
> ┃　│　│　│　│　│　│　│　┃
> ┠─┼─┼─┼─┼─┼─┼─┼─┨
> ┃　│　│　│　│　│　│　│　┃
> ┠─┼─┼─┼─┼─┼─┼─┼─┨
> ┃　│　│　│　│　│　│　│　┃
> ┠─┼─┼─╋─┼─╋─┼─┼─┨
> ┃　│　│　│○│●│　│　│　┃
> ┠─┼─┼─┼─┼─┼─┼─┼─┨
> ┃　│　│　│●│●│　│　│　┃
> ┠─┼─┼─╋─┼─╋─┼─┼─┨
> ┃　│　｜　│　│●│　│　│　┃
> ┠─┼─┼─┼─┼─┼─┼─┼─┨
> ┃　│　│　│　│　│　│　│　┃
> ┠─┼─┼─┼─┼─┼─┼─┼─┨
> ┃　│　│　│　│　│　│　│　┃
> ┗━┷━┷━┷━┷━┷━┷━┷━┛


参考：2000/09/27(水)03時18分50秒