C31232233133313221211113313331333132313331211113313331312132313221   >>    C3123223313331322121111331333133313231333121111331333131213231322   <<    C31232233133313221211113313331333132313331211113313331312132313223   >>      C31232233133313221211113313331333132313331211113313331312132313222   >>