C22213331333133313112331323133313331333133313233211331323231121   >>    C2221333133313331311233132313331333133313331323321133132323112   <<    C22213331333133313112331323133313331333133313233211331323231123   >>      C22213331333133313112331323133313331333133313233211331323231122   >>