C22213331333133313112331323133313331333133313211232313211232323221   >>    C2221333133313331311233132313331333133313331321123231321123232322   <<    C22213331333133313112331323133313331333133313211232313211232323223   >>      C22213331333133313112331323133313331333133313211232313211232323222   >>