|
15个阶段后的结构图（包含50个区域）：
.
. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
. |_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _|
. | _ _ _ _ _ _ _ _ _ _ _ _ _ _ |
. _ _| |_ _ _ _ _ _ _ _ _ _ _ _ _ _| |_ _
. _| _| | _ _ _ _ _ _ _ _ _ _ _ _ | |_ |_
. _| |_ _| |_ _ _ _ _ _ _ _ _ _ _ _| |_ _| |_
. | _ _| | _ _ _ _ _ _ _ _ _ _ | |_ _ |
.__|_||_
. | | _ _ _| _|_ _| _ _ _ _ _ _ _ _ |_ _|_ |_ _ _ | |
. | | | | _ _ _| | _| |_ _ _ _ _ _ _ _| |_ | |_ _ _ | | | |
. | | | | | | _ _|_| _| _ _ _ _ _ _ |_ |_|_ _ | | | | | |
. | | | | | | | | _ _| |_ _ _ _ _ _| |_ _ | | | | | | | |
. | | | | | | | | | | _ _| _ _ _ _ |_ _ | | | | | | | | | |
|
. | | | | | | | | | | | | | | _ _ | | | | | | | | | | | | | |
. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
. | | | | | | | | | | | | | | |_ _| | | | | | | | | | | | | | |
. | | | | | | | | | | | | |_|_ _ _ _|_| | | | | | | | | | | | |
. | | | | | | | | | | |_|_ |_ _ _ _| _|_| | | | | | | | | | |
. | | | | | | | | |_|_ |_ _ _ _ _ _| _|_| | | | | | | | |
. | | | | | | |_|_ _ |_ |_ _ _ _ _ _| _| _ _|_| | | | | | |
. | | | | |_|_ _ | |_ |_ _ _ _ _ _ _ _| _| | _ _|_| | | | |
.|||_|_|_|__|__|______|__|__|__|__|_|_|||
. |_|_ _ _ | |_ |_ _ _ _ _ _ _ _ _ _| _| | _ _ _|_|
. | |_|_ | |_ _ _ _ _ _ _ _ _ _| | _|_| |
. |_ |_ _ |_ _ _ _ _ _ _ _ _ _ _ _| _ _| _|
. |_ |_ | |_ _ _ _ _ _ _ _ _ _ _ _| | _| _|
. |_ _| |_ _ _ _ _ _ _ _ _ _ _ _ _ _| |_ _|
. | |_ _ _ _ _ _ _ _ _ _ _ _ _ _| |
. |_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _|
. |_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _|
.
| 