+ 6
----------
+ 4
----------
+ 6
----------
+ 1
----------
+ 6
----------
+ 7
----------
+ 6
----------
+ 2
----------
+ 6
----------
+ 2
----------
+ 6
----------
+ 8
----------
+ 6
----------
+ 2
----------
+ 6
----------
+ 2
----------
|
|||
| 5 + 6 ---------- |
6 + 4 ---------- |
7 + 6 ---------- |
6 + 1 ---------- |
| 5 + 6 ---------- |
6 + 7 ---------- |
8 + 6 ---------- |
6 + 2 ---------- |
| 5 + 6 ---------- |
6 + 2 ---------- |
6 + 6 ---------- |
6 + 8 ---------- |
| 5 + 6 ---------- |
6 + 2 ---------- |
6 + 6 ---------- |
6 + 2 ---------- |
|
|||