/usr/share/vim-scripts/sokoban-levels/level65.sok is in vim-scripts 20130814ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# # @#...###
# # ##...##
# # # ##$## ## ....#
# $ # $$$ ....#
###$### $$ ### ##.#
# $ # # ####
# $ # ### # # #
## #$## $ $$ #
# $ ## # # # #
# # # # #
####################
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