C11112331312111112111133133313331333133313223223313232233312331   >>    C1111233131211111211113313331333133313331322322331323223331233   <<    C11112331312111112111133133313331333133313223223313232233312333   >>      C11112331312111112111133133313331333133313223223313232233312332   >>