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