C22213331333133313112331323133313331333133313331333133313232223121   >>    C2221333133313331311233132313331333133313331333133313331323222312   <<    C22213331333133313112331323133313331333133313331333133313232223123   >>      C22213331333133313112331323133313331333133313331333133313232223122   >>