墙

|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|
___|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|___
|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|