echo
----
+-------+------------+------------+--------------------+-----------------------------------+
| SPAN  |  KEY HEX   | ENDKEY HEX |    VERSION HEX     |              PRETTY               |
+-------+------------+------------+--------------------+-----------------------------------+
| {b-c} | 62         | 63         | 000000000000000109 | {b-c}/0.000000001,0               |
| {b-c} | 62         |            | 0000000000000001   | "b"/0.000000001,0                 |
| {b-c} | 62ffffffff |            | 0000000000000001   | "b\xff\xff\xff\xff"/0.000000001,0 |
+-------+------------+------------+--------------------+-----------------------------------+
