C11112331312111112111133133313331333133313223223313121111113313232132311   >>    C1111233131211111211113313331333133313331322322331312111111331323213231   <<    C11112331312111112111133133313331333133313223223313121111113313232132313   >>      C11112331312111112111133133313331333133313223223313121111113313232132312   >>