C312322331333132212111133133313331333133312121111331333132213331333132221233121   >>    C31232233133313221211113313331333133313331212111133133313221333133313222123312   <<    C312322331333132212111133133313331333133312121111331333132213331333132221233123   >>      C312322331333132212111133133313331333133312121111331333132213331333132221233122   >>