C312312111111331312111133133313331322331333133313121111331333132323322231   >>    C31231211111133131211113313331333132233133313331312111133133313232332223   <<    C312312111111331312111133133313331322331333133313121111331333132323322233   >>      C312312111111331312111133133313331322331333133313121111331333132323322232   >>