/usr/share/doc/ is in libghc-mersenne-random-pure64-doc 0.2.0.4-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libghc-mersenne-random-pure64-doc/
/usr/share/doc/libghc-mersenne-random-pure64-doc/changelog.Debian.gz
/usr/share/doc/libghc-mersenne-random-pure64-doc/buildinfo_all.gz
/usr/share/doc/libghc-mersenne-random-pure64-doc/copyright
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/src/
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/src/System-Random-Mersenne-Pure64-MTBlock.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/src/System-Random-Mersenne-Pure64-Base.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/src/System-Random-Mersenne-Pure64.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/src/hscolour.css
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/mersenne-random-pure64.txt
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/frames.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/haddock-util.js
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/ocean.css
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/hslogo-16.png
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/synopsis.png
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/minus.gif
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/plus.gif
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/mini_System-Random-Mersenne-Pure64.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/System-Random-Mersenne-Pure64.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/mini_System-Random-Mersenne-Pure64-MTBlock.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/System-Random-Mersenne-Pure64-MTBlock.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/mini_System-Random-Mersenne-Pure64-Base.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/System-Random-Mersenne-Pure64-Base.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/doc-index.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/index-frames.html
/usr/share/doc/libghc-mersenne-random-pure64-doc/html/index.html