C11112331312111112111133133313331333131333133313123231323331333223311   >>    C1111233131211111211113313331333133313133313331312323132333133322331   <<    C11112331312111112111133133313331333131333133313123231323331333223313   >>      C11112331312111112111133133313331333131333133313123231323331333223312   >>