C11112331312111112111133133313331333133313223313331312111133133313232233131331   >>    C1111233131211111211113313331333133313331322331333131211113313331323223313133   <<    C11112331312111112111133133313331333133313223313331312111133133313232233131333   >>      C11112331312111112111133133313331333133313223313331312111133133313232233131332   >>