using System;
using System.Linq;//リストの使用
using System.Collections.Generic;
using System.Text;//テキストの高速出力に必要
class Program
{
	static void Main()
	{
		long nA = long.Parse(Console.ReadLine());
		long[] numsA = Array.ConvertAll(Console.ReadLine().Split(' '),long.Parse);
    long nB = long.Parse(Console.ReadLine());
		long[] numsB = Array.ConvertAll(Console.ReadLine().Split(' '),long.Parse);
    long child = numsA[0];
    long mother = numsB[0];

    for(int i = 1; i < nA; i++) mother *= numsA[i];
    for(int i = 1; i < nB; i++) child *= numsB[i];

    long gcd = Gcd(mother, child);

    child /= gcd;
    mother /= gcd;
    if(mother < 0)
    {
      child *= -1;
      mother *= -1;
    }
    
		Console.WriteLine(child + " " + mother);
	}

  static long Gcd(long a, long b) 
      {//引数a,bの最大公約数を返す
           if (a < b)
               return Gcd(b, a);//入れ替え
           while (b != 0) 
           {
               long changeTo = a % b;
               a = b;
               b = changeTo;
           }
           return a;
       }
  
}