C222133313331333131123313231333133313331333133313331333133313121111133112211111   >>    C22213331333133313112331323133313331333133313331333133313331312111113311221111   <<    C222133313331333131123313231333133313331333133313331333133313121111133112211113   >>      C222133313331333131123313231333133313331333133313331333133313121111133112211112   >>