25
15
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|       |   |           |                   |               |           |       |           |       |
+   +---+   +   +---+---+   +   +---+   +---+---+---+---+   +---+   +   +   +   +---+   +---+---+   +
|   |   |   |   |           |   |               |       |   |       |       |               |       |
+   +   +   +   +   +---+---+---+---+---+---+---+   +---+   +   +---+---+---+---+   +---+---+   +---+
|       |   |   |   |   |       |       |                   |       |           |           |       |
+   +---+   +   +   +   +   +---+   +   +---+   +   +---+---+---+   +---+   +   +---+---+---+---+   +
|           |   |                   |           |   |       |               |       |               |
+---+   +---+   +---+   +---+   +---+---+---+---+---+---+   +---+   +   +   +---+---+---+   +   +   +
|       |           |       |               |       |   |           |   |               |   |   |   |
+   +---+   +---+   +   +   +---+   +   +---+   +---+   +---+---+   +---+---+---+   +   +---+   +   +
|           |           |       |   |   |           |   |           |       |   |   |   |   |   |   |
+   +---+---+---+---+---+---+   +---+---+   +---+---+   +   +---+---+---+   +   +   +---+   +   +   +
|   |   |   |                       |   |   |       |                           |       |       |   |
+   +   +   +   +---+   +---+   +   +   +   +   +   +---+   +   +---+---+   +---+---+   +   +---+---+
|           |       |       |   |           |   |           |   |                   |   |           |
+   +---+---+   +   +---+---+---+---+   +---+   +---+   +---+---+---+---+---+---+---+---+---+---+   +
|   |           |       |                           |               |   |                       |   |
+   +---+---+---+---+   +   +---+   +---+   +   +---+   +---+---+   +   +   +   +---+---+   +   +   +
|       |           |   |       |       |   |   |   |   |       |           |   |   |       |   |   |
+   +---+   +---+   +   +---+---+---+   +---+   +   +   +---+   +---+---+---+---+   +   +---+   +   +
|   |       |           |           |   |           |   |   |               |           |       |   |
+---+   +---+---+---+   +---+---+   +---+---+   +---+---+   +   +   +---+---+---+   +---+   +   +   +
|               |           |       |       |           |       |               |       |   |       |
+---+---+   +   +---+---+   +   +---+---+   +   +---+   +   +   +   +---+---+---+---+---+   +---+   +
|   |       |           |   |           |       |           |   |   |       |   |       |       |   |
+   +---+---+---+   +   +---+---+---+   +---+---+---+   +   +---+---+   +   +   +   +---+---+   +   +
|                   |               |   |       |   |   |               |       |   |           |   |
+   +---+---+---+---+---+---+---+   +   +   +---+   +---+   +   +---+   +   +   +   +   +---+---+   +
|               |                       |                   |       |   |   |   |       |           |
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
