C11112331312111112111133133313331333132323133313331333133312312131   >>    C1111233131211111211113313331333133313232313331333133313331231213   <<    C11112331312111112111133133313331333132323133313331333133312312133   >>      C11112331312111112111133133313331333132323133313331333133312312132   >>