/usr/share/ncarg/hluex/contourplot/ is in libncarg-data 6.4.0-9.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ncarg/hluex/contourplot/cn01c.c
/usr/share/ncarg/hluex/contourplot/cn01f.f
/usr/share/ncarg/hluex/contourplot/cn02c.c
/usr/share/ncarg/hluex/contourplot/cn02f.f
/usr/share/ncarg/hluex/contourplot/cn03c.c
/usr/share/ncarg/hluex/contourplot/cn03c.h
/usr/share/ncarg/hluex/contourplot/cn03f.f
/usr/share/ncarg/hluex/contourplot/cn04c.c
/usr/share/ncarg/hluex/contourplot/cn04f.f
/usr/share/ncarg/hluex/contourplot/cn05c.c
/usr/share/ncarg/hluex/contourplot/cn05f.f
/usr/share/ncarg/hluex/contourplot/cn06c.c
/usr/share/ncarg/hluex/contourplot/cn06f.f
/usr/share/ncarg/hluex/contourplot/cn07c.c
/usr/share/ncarg/hluex/contourplot/cn07f.f
/usr/share/ncarg/hluex/contourplot/cn08c.c
/usr/share/ncarg/hluex/contourplot/cn08f.f
/usr/share/ncarg/hluex/contourplot/cn09c.c
/usr/share/ncarg/hluex/contourplot/cn09f.f
/usr/share/ncarg/hluex/contourplot/cn10c.c
/usr/share/ncarg/hluex/contourplot/cn10f.f
/usr/share/ncarg/hluex/contourplot/cn11c.c
/usr/share/ncarg/hluex/contourplot/cn11c.h
/usr/share/ncarg/hluex/contourplot/cn11f.f
/usr/share/ncarg/hluex/contourplot/cn12c.c
/usr/share/ncarg/hluex/contourplot/cn12f.f
/usr/share/ncarg/hluex/contourplot/cn13c.c
/usr/share/ncarg/hluex/contourplot/cn13f.f
/usr/share/ncarg/hluex/contourplot/cn14c.c
/usr/share/ncarg/hluex/contourplot/cn14f.f
/usr/share/ncarg/hluex/contourplot/cn15c.c
/usr/share/ncarg/hluex/contourplot/cn15f.f
/usr/share/ncarg/hluex/contourplot/cn16c.c
/usr/share/ncarg/hluex/contourplot/cn16f.f
/usr/share/ncarg/hluex/contourplot/cn17c.c
/usr/share/ncarg/hluex/contourplot/cn17f.f