C3132121111133313233121111331333133313331333133313331333133313232133313122311   >>    C313212111113331323312111133133313331333133313331333133313331323213331312231   <<    C3132121111133313233121111331333133313331333133313331333133313232133313122313   >>      C3132121111133313233121111331333133313331333133313331333133313232133313122312   >>