C22213331333133313112331323133313331333133313331333133313331312111111331312121   >>    C2221333133313331311233132313331333133313331333133313331333131211111133131212   <<    C22213331333133313112331323133313331333133313331333133313331312111111331312123   >>      C22213331333133313112331323133313331333133313331333133313331312111111331312122   >>