+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
|     "     |     |     "     |     |     "     |     |     |
|     "  3  |  8  |  4  "     |     |     "  2  |  1  |  5  |
|     "     |     |     "     |     |     "     |     |     |
+=====+=====+=====+=====+-----+-----+-----+-----+-----+-----+
|     |     |     "     "     |     |     "     |     |     |
|  6  |     |     "     "  1  |     |     "     |     |     |
|     |     |     "     "     |     |     "     |     |     |
+-----+-----+-----+=====+=====+=====+=====+-----+-----+-----+
|     |     |     "     |     |     "     "     |     |     |
|  7  |     |     "     |     |  5  "     "     |     |     |
|     |     |     "     |     |     "     "     |     |     |
+-----+-----+-----+-----+-----+-----+=====+=====+=====+=====+
|     |     |     "     |     |     "     |     |     "     |
|  2  |     |     "     |     |     "  9  |     |     "     |
|     |     |     "     |     |     "     |     |     "     |
+=====+=====+=====+-----+-----+-----+-----+-----+-----+=====+
|     |     "     "     |     |     "     |     |     "     |
|     |     "     "  3  |     |     "     |     |     "  4  |
|     |     "     "     |     |     "     |     |     "     |
+-----+-----+=====+=====+=====+=====+-----+-----+-----+-----+
|     |     "     |     |     "     "     |     |     "     |
|     |     "  9  |     |     "     "     |     |  3  "     |
|     |     "     |     |     "     "     |     |     "     |
+-----+-----+-----+-----+-----+=====+=====+=====+=====+-----+
|     |     "     |     |     "     |     |     "     "     |
|     |  6  "     |     |     "     |     |  1  "     "     |
|     |     "     |     |     "     |     |     "     "     |
+=====+=====+-----+-----+-----+-----+-----+-----+=====+=====+
|     "     "     |     |     "     |     |     "     |     |
|  4  "     "     |     |  3  "     |     |     "     |     |
|     "     "     |     |     "     |     |     "     |     |
+-----+=====+=====+=====+=====+-----+-----+-----+-----+-----+
|     "     |     |     "     "     |     |     "     |     |
|  1  "     |     |     "     "  2  |     |     "     |     |
|     "     |     |     "     "     |     |     "     |     |
+-----+-----+-----+-----+=====+=====+=====+=====+-----+-----+
|     "     |     |     "     |     |     "     "     |     |
|  9  "     |     |     "     |     |  8  "     "     |     |
|     "     |     |     "     |     |     "     "     |     |
+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+