+----+----+----+----+
|    |####|####|    |
|    |####|####|    |
+----+----+----+----+
|    |    |    |    |
|    |    |    |    |
+----+----+----+----+
|    |####|    |    |
|    |####|    |    |
+----+----+----+----+