C22213331333133313112331323133313331333133313112331333133322231123121   >>    C2221333133313331311233132313331333133313331311233133313332223112312   <<    C22213331333133313112331323133313331333133313112331333133322231123123   >>      C22213331333133313112331323133313331333133313112331333133322231123122   >>