C11112331312111112111133133313331333133313223313331312111133132223131   >>    C1111233131211111211113313331333133313331322331333131211113313222313   <<    C11112331312111112111133133313331333133313223313331312111133132223133   >>      C11112331312111112111133133313331333133313223313331312111133132223132   >>