1-1-------------1-1-
----1---------1-----
--1-----1-1-----1---
----1-1-----1-1-----
--------1-1---------
------1-----1-------
--------1-1---------
--1-1-1-----1-1-1---
--------1-1---------
1-1-------------1-1-
-------1-1-1--------
1----1-------1----1-
-------1-1-1--------
--------------------
!
1-1-------------1-1-
----1---------1-----
--1-----1-1-----1---
----1-1-----1-1-----
--------1-1---------
------1-----1-------
--------1-1---------
--1-1-1-----1-1-1---
--------1-1---------
1-1-------------1-1-
-------1-1-1--------
1----1-------1----1-
-------1-1-1--------
--------------------
!
1-1-------------1-1-
--------------------
--1-1---1-1---1-1---
------1-----1-------
--------1-1---------
------1-----1-------
--------1-1---------
----1-1-----1-1-----
--1-----1-1-----1---
--------------------
1------1-1-1------1-
--------------------
--------1-1---------
--------------------
!
--------------------
--1-------------1---
----1----1----1-----
--------------------
-------1-1-1--------
--------------------
-------1-1-1--------
-----1-------1------
---------1----------
--------------------
--------1-1---------
--------------------
---------1----------
--------------------
!