Number of Distinct Characters: 2
String Length: 21
Maximum Number of Runs: 15
Number of Unique Strings: 14 (not including reversible twins)

aaababaababbabaababaa [rev]
aabaababaababbabaabab [rev]
aabaababbabaababbabaa [rev]
aabaabbaabaabbaabaabb [rev]
aabaabbaabaabbaabbabb [rev]
aabaabbaabaabbbaabbaa [rev]
aabaabbaabbabaabbaabb [rev]
aababaababbabaababaab [rev]
aababaababbabaababbaa [rev]
aababaababbabaababbab [rev]
aababbabaababbabaabab [rev]
aababbabaababbababbaa [rev]
aababbabaababbababbab [rev]
ababbabaababbababbaba [rev]