C312322331333132212111133133313331333133312121111331323221333132223132121   >>    C31232233133313221211113313331333133313331212111133132322133313222313212   <<    C312322331333132212111133133313331333133312121111331323221333132223132123   >>      C312322331333132212111133133313331333133312121111331323221333132223132122   >>