C31232233133313221211113313331333133313331212111133133323211232313111   >>    C3123223313331322121111331333133313331333121211113313332321123231311   <<    C31232233133313221211113313331333133313331212111133133323211232313113   >>      C31232233133313221211113313331333133313331212111133133323211232313112   >>