C11112331312111112111133133313331333132212111133133313331333132323311211   >>    C1111233131211111211113313331333133313221211113313331333133313232331121   <<    C11112331312111112111133133313331333132212111133133313331333132323311213   >>      C11112331312111112111133133313331333132212111133133313331333132323311212   >>