C22213331333133313112331323133313331333133313211232313233233121   >>    C2221333133313331311233132313331333133313331321123231323323312   <<    C22213331333133313112331323133313331333133313211232313233233123   >>      C22213331333133313112331323133313331333133313211232313233233122   >>