C312312111111331312111133133313331322331333133313121111331333111112111   >>    C31231211111133131211113313331333132233133313331312111133133311111211   <<    C312312111111331312111133133313331322331333133313121111331333111112113   >>      C312312111111331312111133133313331322331333133313121111331333111112112   >>