C11112331312111112111133133313331333133313133313331333133313311211332223311   >>    C1111233131211111211113313331333133313331313331333133313331331121133222331   <<    C11112331312111112111133133313331333133313133313331333133313311211332223313   >>      C11112331312111112111133133313331333133313133313331333133313311211332223312   >>