1
45
20
-1
white
+===================|   |===================+
] _________________|     |_________________ [
]|lllllllllllllllll|     |lllllllllllllllll|[
]|=================|     |=================|[
]|lllllllllllllllll|     |lllllllllllllllll|[
]|=================|     |=================|[
]|lllllllllllllllll|     |lllllllllllllllll|[
====================     ====================
                                             
                                             
                                             
                                             
=   ______________         ______________   =
]  |              |       |              |  [
]  |              |       |              |  [
]  |______________|       |______________|  [
]  |              |       |              |  [
]  |              |       |              |  [
]                                           [
+===================|   |===================+