C31232233133313221211113313331333133313331212111133133313332332233313111   >>    C3123223313331322121111331333133313331333121211113313331333233223331311   <<    C31232233133313221211113313331333133313331212111133133313332332233313113   >>      C31232233133313221211113313331333133313331212111133133313332332233313112   >>