C222133313331333131123313231333133313331311111211113313331323222233121   >>    C22213331333133313112331323133313331333131111121111331333132322223312   <<    C222133313331333131123313231333133313331311111211113313331323222233123   >>      C222133313331333131123313231333133313331311111211113313331323222233122   >>