-----
|   |
| o |
|   |
-----

-----
|o  |
|   |
|  o|
-----

-----
|o  |
| o |
|  o|
-----

-----
|o o|
|   |
|o o|
-----

-----
|o o|
| o |
|o o|
-----

-----
|o o|
|o o|
|o o|
-----

Status: valid iterations:   1
Status:     total inputs:   2
