C11112331312111112111133133313331333133313223223313121111132132333131   >>    C1111233131211111211113313331333133313331322322331312111113213233313   <<    C11112331312111112111133133313331333133313223223313121111132132333133   >>      C11112331312111112111133133313331333133313223223313121111132132333132   >>