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$ NUM_THREADS=12 ./llil4map big{1,2,3}.txt | cksum llil4map (fixed string length=12) start ... count lines 10545600 count unique 10367603 2956888413 93308427
$ ./llil4map big{1,2,3}.txt | cksum llil4map (fixed string length=12) start ... count lines 10545600 count unique 10367603 2956888413 93308427