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--rw-rw-r-- rsc sys  4686 Jan  3  2006 main.c
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--rw-rw-r-- rsc sys   104 Jan  4  2006 notes
--rw-rw-r-- rsc sys    57 Jan  4  2006 origls
--rw-rw-r-- rsc sys    60 Jan  3  2006 readme