C31232233133313221211113313331333133313331212111133133313332111231213311   >>    C3123223313331322121111331333133313331333121211113313331333211123121331   <<    C31232233133313221211113313331333133313331212111133133313332111231213313   >>      C31232233133313221211113313331333133313331212111133133313332111231213312   >>