C22213331333133313112331323133313331333133313221333133311331311233132211331   >>    C2221333133313331311233132313331333133313331322133313331133131123313221133   <<    C22213331333133313112331323133313331333133313221333133311331311233132211333   >>      C22213331333133313112331323133313331333133313221333133311331311233132211332   >>