C11112331312111112111133133313331333133313331333133313233313123131   >>    C1111233131211111211113313331333133313331333133313331323331312313   <<    C11112331312111112111133133313331333133313331333133313233313123133   >>      C11112331312111112111133133313331333133313331333133313233313123132   >>