import sys
stdin = sys.stdin

sys.setrecursionlimit(10**5)

def li(): return map(int, stdin.readline().split())
def li_(): return map(lambda x: int(x)-1, stdin.readline().split())
def lf(): return map(float, stdin.readline().split())
def ls(): return stdin.readline().split()
def ns(): return stdin.readline().rstrip()
def lc(): return list(ns())
def ni(): return int(stdin.readline())
def nf(): return float(stdin.readline())

def get_gcd(a:int, b:int) -> int:
    while b:
        a, b = b, a % b
    return a

n1 = ni()
a = list(li())
n2 = ni()
b = list(li())

up = a[0]
bt = 1

for ai in a[1:]:
    bt *= ai
    
for i, bi in enumerate(b):
    if i%2:
        up *= bi
    else:
        bt *= bi
    
gcd = get_gcd(up,bt)
print(up//gcd, bt//gcd)