C312312111111331312111133133313331322331312111112111133131133132233322121   >>    C31231211111133131211113313331333132233131211111211113313113313223332212   <<    C312312111111331312111133133313331322331312111112111133131133132233322123   >>      C312312111111331312111133133313331322331312111112111133131133132233322122   >>