C31232233133313221211113313331333133313331212111133133313331121232313231   >>    C3123223313331322121111331333133313331333121211113313331333112123231323   <<    C31232233133313221211113313331333133313331212111133133313331121232313233   >>      C31232233133313221211113313331333133313331212111133133313331121232313232   >>