/usr/share/m17n/KSC5636.map is in m17n-db 1.6.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | # Generated from /usr/share/i18n/charmaps/KSC5636.gz
0x0000-0x005B 0x0000
0x005C 0x20A9
0x005D-0x007F 0x005D
|