C312322331333132212111133133313331333133312121111121111122131221   >>    C31232233133313221211113313331333133313331212111112111112213122   <<    C312322331333132212111133133313331333133312121111121111122131223   >>      C312322331333132212111133133313331333133312121111121111122131222   >>