+-+ x 2 (A=3)
| |
| |
| |
+-+

+-+ x 1 (A=5)
| |
| |
| |
| |
| |
+-+

  +----+ x 1 (A=46)
  |    |
  |    |
  |    |
+-+    |
|      |
|      |
|      |
|      |
|      |
+------+