C22213331333133313112331323133313331333133313211231213232212111   >>    C2221333133313331311233132313331333133313331321123121323221211   <<    C22213331333133313112331323133313331333133313211231213232212113   >>      C22213331333133313112331323133313331333133313211231213232212112   >>