C31232233133313221211113313331333133313331212111133133313132233231   >>    C3123223313331322121111331333133313331333121211113313331313223323   <<    C31232233133313221211113313331333133313331212111133133313132233233   >>      C31232233133313221211113313331333133313331212111133133313132233232   >>