C31232233133313221211113313331333133313331212111133133313213111   >>    C3123223313331322121111331333133313331333121211113313331321311   <<    C31232233133313221211113313331333133313331212111133133313213113   >>      C31232233133313221211113313331333133313331212111133133313213112   >>