C222133313331333131123313231333133313331333133313113313232233121   >>    C22213331333133313112331323133313331333133313331311331323223312   <<    C222133313331333131123313231333133313331333133313113313232233123   >>      C222133313331333131123313231333133313331333133313113313232233122   >>