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# complexities
a(((b)))c - abc abc
a(b|(c))d - abd abd
a(b*|c)d - abbd abbd
# just gotta have one DFA-buster, of course
a[ab]{20} - aaaaabaaaabaaaabaaaab aaaaabaaaabaaaabaaaab
# and an inline expansion in case somebody gets tricky
a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab] - aaaaabaaaabaaaabaaaab aaaaabaaaabaaaabaaaab
# and in case somebody just slips in an NFA...
a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab](wee|week)(knights|night) - aaaaabaaaabaaaabaaaabweeknights aaaaabaaaabaaaabaaaabweeknights
# fish for anomalies as the number of states passes 32
12345678901234567890123456789 - a12345678901234567890123456789b 12345678901234567890123456789
123456789012345678901234567890 - a123456789012345678901234567890b 123456789012345678901234567890
1234567890123456789012345678901 - a1234567890123456789012345678901b 1234567890123456789012345678901
12345678901234567890123456789012 - a12345678901234567890123456789012b 12345678901234567890123456789012
123456789012345678901234567890123 - a123456789012345678901234567890123b 123456789012345678901234567890123
# and one really big one, beyond any plausible word width
1234567890123456789012345678901234567890123456789012345678901234567890 - a1234567890123456789012345678901234567890123456789012345678901234567890b 1234567890123456789012345678901234567890123456789012345678901234567890
# fish for problems as brackets go past 8
[ab][cd][ef][gh][ij][kl][mn] - xacegikmoq acegikm
[ab][cd][ef][gh][ij][kl][mn][op] - xacegikmoq acegikmo
[ab][cd][ef][gh][ij][kl][mn][op][qr] - xacegikmoqy acegikmoq
[ab][cd][ef][gh][ij][kl][mn][op][q] - xacegikmoqy acegikmoq
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