C222133313331333131123313231333133313331333131123313233313112223321   >>    C22213331333133313112331323133313331333133313112331323331311222332   <<    C222133313331333131123313231333133313331333131123313233313112223323   >>      C222133313331333131123313231333133313331333131123313233313112223322   >>