C3132121111133313233121111331333133313331333133313331333133313232321331211   >>    C313212111113331323312111133133313331333133313331333133313331323232133121   <<    C3132121111133313233121111331333133313331333133313331333133313232321331213   >>      C3132121111133313233121111331333133313331333133313331333133313232321331212   >>