C22213331333133313112331323133313331333133313211231211111233232311   >>    C2221333133313331311233132313331333133313331321123121111123323231   <<    C22213331333133313112331323133313331333133313211231211111233232313   >>      C22213331333133313112331323133313331333133313211231211111233232312   >>