/usr/lib/ is in auto-multiple-choice-common 1.3.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/AMC/
/usr/lib/AMC/perl/
/usr/lib/AMC/perl/AMC-analyse.pl
/usr/lib/AMC/perl/AMC-annotate.pl
/usr/lib/AMC/perl/AMC-annote.pl
/usr/lib/AMC/perl/AMC-association-auto.pl
/usr/lib/AMC/perl/AMC-association.pl
/usr/lib/AMC/perl/AMC-export.pl
/usr/lib/AMC/perl/AMC-getimages.pl
/usr/lib/AMC/perl/AMC-gui-apropos.glade
/usr/lib/AMC/perl/AMC-gui-choix_pages_impression.glade
/usr/lib/AMC/perl/AMC-gui-choix_postcorrect.glade
/usr/lib/AMC/perl/AMC-gui-choix_projet.glade
/usr/lib/AMC/perl/AMC-gui-choose-mode.glade
/usr/lib/AMC/perl/AMC-gui-choose_columns.glade
/usr/lib/AMC/perl/AMC-gui-choose_students.glade
/usr/lib/AMC/perl/AMC-gui-cleanup.glade
/usr/lib/AMC/perl/AMC-gui-edit_preferences.glade
/usr/lib/AMC/perl/AMC-gui-filter_details.glade
/usr/lib/AMC/perl/AMC-gui-liste_dialog.glade
/usr/lib/AMC/perl/AMC-gui-mailing.glade
/usr/lib/AMC/perl/AMC-gui-main_window.glade
/usr/lib/AMC/perl/AMC-gui-make_template.glade
/usr/lib/AMC/perl/AMC-gui-saisie_auto.glade
/usr/lib/AMC/perl/AMC-gui-source_latex_choix.glade
/usr/lib/AMC/perl/AMC-gui-source_latex_choix_zip.glade
/usr/lib/AMC/perl/AMC-gui-source_latex_dialog.glade
/usr/lib/AMC/perl/AMC-gui-source_latex_modele.glade
/usr/lib/AMC/perl/AMC-gui-unrecognized.glade
/usr/lib/AMC/perl/AMC-gui.pl
/usr/lib/AMC/perl/AMC-imprime.pl
/usr/lib/AMC/perl/AMC-latex-link.pl
/usr/lib/AMC/perl/AMC-mailing.pl
/usr/lib/AMC/perl/AMC-manuel.pl
/usr/lib/AMC/perl/AMC-meptex.pl
/usr/lib/AMC/perl/AMC-note.pl
/usr/lib/AMC/perl/AMC-prepare.pl
/usr/lib/AMC/perl/AMC-regroupe.pl