C22213331333133313112331323133313331333133313233311232313233222321   >>    C2221333133313331311233132313331333133313331323331123231323322232   <<    C22213331333133313112331323133313331333133313233311232313233222323   >>      C22213331333133313112331323133313331333133313233311232313233222322   >>