/usr/share/gap/pkg/ctbllib/gap4/ is in gap-character-tables 1r2p2.dfsg.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gap/pkg/ctbllib/gap4/brctdiff.g
/usr/share/gap/pkg/ctbllib/gap4/brirrat.g
/usr/share/gap/pkg/ctbllib/gap4/construc.gd
/usr/share/gap/pkg/ctbllib/gap4/construc.gi
/usr/share/gap/pkg/ctbllib/gap4/ctadmin.tbd
/usr/share/gap/pkg/ctbllib/gap4/ctadmin.tbi
/usr/share/gap/pkg/ctbllib/gap4/ctblothe.gd
/usr/share/gap/pkg/ctbllib/gap4/ctblothe.gi
/usr/share/gap/pkg/ctbllib/gap4/ctbltocb.g
/usr/share/gap/pkg/ctbllib/gap4/ctbltoct.g
/usr/share/gap/pkg/ctbllib/gap4/ctdbattr.g
/usr/share/gap/pkg/ctbllib/gap4/obsolete.gd
/usr/share/gap/pkg/ctbllib/gap4/test.g