C312322331333132212111133133313331333133312121111133313232322331323211231   >>    C31232233133313221211113313331333133313331212111113331323232233132321123   <<    C312322331333132212111133133313331333133312121111133313232322331323211233   >>      C312322331333132212111133133313331333133312121111133313232322331323211232   >>