Number of Distinct Characters: 2
String Length: 15
Maximum Number of Runs: 10
Number of Unique Strings: 9 (not including reversible twins)

aaabaabbaabaabb [rev]
aaabbabbaabbabb [rev]
aabaabbaabaabba [rev]
aababaababbabaa [rev]
aababbababbabaa [pal]
aabbaabaabbaabb [rev]
aabbaabbbaabbaa [pal]
aabbabbaabbabba [rev]
abbaabbabbaabba [pal]