C22213331333133313112331323133313331333133313112331323223331212121   >>    C2221333133313331311233132313331333133313331311233132322333121212   <<    C22213331333133313112331323133313331333133313112331323223331212123   >>      C22213331333133313112331323133313331333133313112331323223331212122   >>