(defn proc-seq [limit arg]
	(drop-while #(< % limit) arg))

(defn all-same? [xs] 
	(let [f #(= % (first xs))]
		(every? f xs)))

(defn solve [& args]
	(loop [seqs args]
		(let [firsts (map first seqs)]
			(if (all-same? firsts) (first firsts)
				(recur (map (partial proc-seq (reduce max firsts)) seqs))))))