C222133313331333131123313231333133313331333132312111112111113233313331121221   >>    C22213331333133313112331323133313331333133313231211111211111323331333112122   <<    C222133313331333131123313231333133313331333132312111112111113233313331121223   >>      C222133313331333131123313231333133313331333132312111112111113233313331121222   >>