[ 6:55:26.00] C:\test\humanGenome>..\976237 chr21.fa
16384
Using custom indexing found 35106546 matches; took 31.611258 seconds
Using custom index2 found 35106546 matches; took 27.504099 seconds
Using custom index3 found 35106546 matches; took 27.571143 seconds
Using quantified charclass lookahead found 35106546 matches; took 49.954810 seconds