C31232233133313221211113313331333133313331212111133121111121111132312331   >>    C3123223313331322121111331333133313331333121211113312111112111113231233   <<    C31232233133313221211113313331333133313331212111133121111121111132312333   >>      C31232233133313221211113313331333133313331212111133121111121111132312332   >>