C31232233133313221211113313331333133313331212111112111113113121333111   >>    C3123223313331322121111331333133313331333121211111211111311312133311   <<    C31232233133313221211113313331333133313331212111112111113113121333113   >>      C31232233133313221211113313331333133313331212111112111113113121333112   >>