C22213331333133313112331323133313331333131311331311221123223321   >>    C2221333133313331311233132313331333133313131133131122112322332   <<    C22213331333133313112331323133313331333131311331311221123223323   >>      C22213331333133313112331323133313331333131311331311221123223322   >>