C11112331312111112111133133313331333133313331333133313223313331322233131   >>    C1111233131211111211113313331333133313331333133313331322331333132223313   <<    C11112331312111112111133133313331333133313331333133313223313331322233133   >>      C11112331312111112111133133313331333133313331333133313223313331322233132   >>