50
30
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|   |   |                       |               |       |       |           |                                                   |           |                           |               |               |
+   +   +   +   +   +---+---+   +   +   +---+---+   +   +   +   +---+   +   +   +   +---+---+---+---+   +---+---+---+---+---+---+   +---+---+   +---+---+---+   +---+---+   +---+---+   +   +---+---+---+
|   |       |   |       |   |       |               |       |       |   |   |   |       |       |       |       |       |   |                   |           |       |       |       |   |   |           |
+   +---+---+   +---+   +   +---+---+---+   +---+---+---+---+---+   +   +   +   +---+   +---+   +   +---+   +   +   +   +   +   +---+---+---+---+   +---+   +---+   +   +---+   +---+---+   +   +---+   +
|   |               |                   |   |       |                   |           |   |       |       |   |       |   |       |   |       |       |       |                   |           |       |   |
+   +---+---+---+   +---+---+---+---+---+   +---+   +   +---+---+   +   +   +---+   +   +   +   +---+   +   +---+---+   +---+   +   +   +   +   +   +   +   +---+---+---+---+---+   +   +---+---+   +   +
|       |       |   |           |                   |   |   |       |   |       |   |       |       |       |       |                   |       |   |   |       |                   |               |   |
+   +   +   +---+   +---+   +   +---+---+---+---+---+   +   +   +---+   +   +---+   +---+---+---+---+---+   +---+   +---+   +---+---+---+---+   +   +---+   +---+---+   +---+---+---+---+---+---+---+   +
|   |           |   |       |   |           |       |   |   |   |       |   |       |       |               |           |   |       |       |   |       |   |       |               |       |           |
+   +---+---+---+   +   +---+   +   +---+---+   +   +   +   +---+---+---+---+   +---+---+   +   +   +---+   +   +---+   +---+   +   +   +   +---+---+   +---+---+   +   +---+---+---+   +   +---+---+   +
|       |       |   |   |   |   |   |           |       |           |                   |       |       |   |       |           |       |           |                                   |   |       |   |
+   +   +   +   +   +   +   +---+   +   +---+---+---+---+---+---+   +---+   +---+---+   +---+---+---+   +   +   +   +---+---+---+---+---+   +---+   +---+---+   +---+   +---+   +   +---+   +   +   +   +
|   |       |           |           |   |                           |           |       |               |   |   |       |                       |   |       |       |   |       |   |   |   |   |       |
+   +---+   +---+---+---+---+---+   +   +   +---+   +---+   +---+---+   +   +---+---+---+   +   +---+---+   +---+---+   +   +---+---+   +---+---+   +   +---+   +   +---+---+   +   +   +   +---+---+---+
|   |   |                           |       |       |       |           |           |       |       |   |   |           |       |               |   |           |   |       |   |       |       |       |
+   +   +   +---+---+---+   +---+---+   +---+---+   +---+---+   +---+---+---+---+   +   +---+---+   +   +   +   +---+---+   +   +---+   +---+   +   +   +   +---+   +   +   +---+   +---+   +   +---+   +
|       |           |       |       |           |   |       |                   |   |   |               |       |       |   |       |   |       |   |   |   |       |   |           |   |   |           |
+---+   +---+---+   +---+   +   +   +   +---+   +---+---+   +   +---+   +---+---+   +   +---+   +---+---+   +---+---+   +   +   +---+   +---+   +   +---+   +---+---+   +---+---+   +   +   +---+---+---+
|       |       |       |   |   |   |   |   |   |       |   |   |   |   |       |   |       |       |   |   |       |   |   |   |   |       |   |   |       |   |           |       |           |       |
+   +---+---+   +---+   +---+   +---+---+   +---+---+   +   +---+   +---+   +   +   +---+   +---+---+   +   +---+   +   +   +   +   +---+---+---+   +   +---+   +   +---+---+   +   +---+---+---+   +   +
|               |               |           |           |       |   |       |   |   |   |               |               |   |   |                   |   |       |           |   |       |           |   |
+   +   +---+---+---+---+---+---+---+   +---+---+   +---+   +   +   +---+---+   +   +   +---+---+---+---+   +   +---+---+---+   +   +---+---+---+---+   +   +---+---+---+   +   +   +---+   +---+---+   +
|   |               |               |           |   |       |   |   |       |           |           |       |   |   |       |   |       |           |           |           |   |           |       |   |
+---+   +---+   +   +   +---+---+   +---+---+   +   +   +---+---+   +   +---+---+---+---+   +---+---+   +---+   +   +   +   +   +---+   +---+---+   +   +---+---+---+---+---+   +   +---+---+   +   +   +
|       |       |           |   |       |       |           |       |       |           |   |       |   |   |   |       |   |   |       |       |   |       |   |   |       |   |           |   |   |   |
+---+---+   +---+   +---+   +   +---+   +---+   +---+---+   +   +---+   +---+---+   +---+   +   +---+   +   +   +---+   +   +---+   +---+   +   +   +---+---+   +   +   +---+---+---+---+   +   +   +---+
|   |       |           |   |   |           |               |                               |       |       |           |   |       |       |                   |       |           |           |       |
+   +   +---+   +---+---+---+   +   +---+   +---+---+---+   +---+   +   +---+---+---+---+---+   +   +---+---+---+---+---+   +---+---+   +   +---+   +---+---+---+   +---+---+   +   +   +---+---+---+   +
|   |   |   |       |       |           |       |       |       |   |       |                   |   |       |           |   |   |       |       |   |           |           |   |       |               |
+   +   +   +---+   +   +---+   +---+   +---+   +   +   +   +   +   +   +---+---+---+   +   +---+   +   +   +   +---+   +---+   +   +---+---+   +---+---+   +---+---+   +   +---+---+---+   +---+---+---+
|       |       |   |               |       |   |   |       |   |   |                   |       |       |       |       |       |   |           |           |           |   |       |       |           |
+---+   +   +   +   +---+---+---+---+   +   +   +   +---+---+   +   +---+---+---+---+   +---+---+---+   +   +---+---+---+---+   +   +   +   +---+   +---+   +   +---+---+   +---+   +   +---+   +---+   +
|           |   |   |           |       |   |   |   |           |       |           |               |   |   |               |       |   |               |   |   |       |           |   |       |       |
+---+---+---+---+   +---+   +   +---+---+   +   +   +---+---+---+---+   +---+   +---+---+---+---+---+   +---+   +---+   +   +---+---+   +---+   +---+   +---+   +   +   +---+---+---+   +   +---+   +---+
|           |   |       |   |       |       |       |       |               |           |           |       |   |   |   |               |   |   |   |           |   |       |   |       |       |       |
+   +---+   +   +---+   +   +---+   +---+   +---+   +   +   +   +---+---+---+   +   +   +---+---+   +---+   +   +   +   +---+   +   +   +   +   +   +---+---+---+   +---+   +   +   +---+---+   +---+   +
|       |               |       |               |       |   |       |       |   |   |                   |       |           |   |   |   |   |   |       |           |   |   |       |   |           |   |
+   +---+---+---+   +---+---+   +---+---+---+---+---+---+   +   +   +   +   +---+   +---+---+---+---+   +---+---+   +---+   +---+   +---+   +---+   +   +   +---+---+   +   +---+---+   +   +   +   +---+
|           |       |   |               |       |       |   |   |       |           |       |   |       |       |       |       |   |               |   |   |       |       |           |   |   |   |   |
+---+---+   +   +---+   +   +   +---+---+   +   +   +   +   +---+---+   +---+---+---+   +   +   +---+---+---+   +---+---+---+---+   +---+---+---+   +   +   +   +   +---+---+---+---+   +---+   +---+   +
|   |       |   |           |       |       |       |           |       |   |           |   |       |               |           |                   |   |       |   |           |       |           |   |
+   +---+---+---+   +   +   +---+   +---+---+   +---+   +   +   +   +---+   +   +---+---+   +   +---+   +---+   +   +---+   +   +---+---+---+   +---+---+---+---+   +---+   +---+---+   +   +   +---+   +
|               |   |   |   |       |               |   |   |           |       |   |       |           |       |           |   |                   |   |   |   |       |       |           |           |
+---+---+   +   +   +---+   +   +---+   +   +---+---+   +   +---+---+---+   +---+   +   +   +---+---+---+   +---+---+---+---+---+---+---+---+---+---+   +   +   +---+   +---+   +   +   +---+---+---+   +
|           |   |   |       |       |   |       |       |               |       |       |                   |               |   |       |       |           |           |       |   |           |   |   |
+   +---+---+---+   +---+---+   +---+   +---+   +   +---+---+---+   +   +---+   +---+---+---+---+---+   +---+   +---+   +   +   +   +   +   +   +   +---+   +---+   +---+   +   +   +   +---+---+   +---+
|   |           |   |       |       |       |   |   |           |   |           |       |               |   |   |       |   |       |       |   |   |   |       |           |       |           |       |
+   +   +   +   +   +   +---+---+   +---+   +---+---+   +---+   +---+   +---+---+   +   +   +---+---+---+   +   +---+---+---+---+   +---+---+---+---+   +   +   +---+---+   +---+---+---+---+   +---+   +
|       |   |       |   |       |   |   |       |   |   |                   |       |       |                           |           |               |   |   |   |       |       |   |       |   |       |
+---+---+   +   +---+   +   +   +   +   +---+   +   +   +---+---+   +---+---+   +---+---+---+---+   +---+---+---+---+   +   +---+---+   +---+---+   +   +---+   +---+   +---+   +   +   +---+   +   +---+
|           |   |       |   |   |   |       |   |   |       |           |   |   |                   |               |   |                   |   |           |   |   |               |   |   |   |       |
+   +   +---+---+   +---+   +   +   +   +   +   +   +   +---+   +---+   +   +   +   +   +---+---+---+   +   +---+---+   +---+---+   +---+   +   +---+---+   +   +   +---+   +---+---+   +   +   +---+   +
|   |   |       |           |   |   |   |   |       |       |   |   |       |       |   |               |                       |       |               |       |       |       |       |   |           |
+   +   +   +   +---+   +   +   +---+---+   +---+---+   +---+   +   +   +---+---+---+   +---+---+---+---+---+---+---+---+---+   +---+   +---+---+---+   +---+   +---+   +---+---+   +---+   +   +---+---+
|   |   |   |   |       |   |       |           |       |       |       |   |       |       |               |           |   |                       |       |   |   |               |           |       |
+   +   +   +   +   +---+   +---+   +   +---+---+   +---+   +---+   +---+   +   +   +---+   +   +---+---+   +   +---+   +   +---+---+---+---+---+   +---+   +   +   +   +---+---+   +   +   +   +   +---+
|   |       |   |   |       |       |   |   |       |   |       |   |           |       |   |       |   |   |   |   |   |           |   |           |       |       |   |       |       |   |   |       |
+   +---+---+---+---+   +---+---+---+   +   +---+---+   +---+   +   +---+---+   +---+   +   +---+   +   +   +   +   +   +   +   +   +   +---+---+---+   +---+---+---+   +   +---+   +---+---+   +---+   +
|                                   |                           |   |               |               |           |           |   |           |                           |                   |           |
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
