C1111233131211111211113313331333133313331333133313331333133313223323132331   >>    C111123313121111121111331333133313331333133313331333133313331322332313233   <<    C1111233131211111211113313331333133313331333133313331333133313223323132333   >>      C1111233131211111211113313331333133313331333133313331333133313223323132332   >>