input()
numerator = list(map(int, input().split()))
input()
denominator = list(map(int, input().split()))

while len(numerator) > 2:
    numerator[2] *= numerator[1]
    numerator.pop(1)
while len(denominator) > 2:
    denominator[-3] *= denominator[-1]
    denominator.pop()

numerator, denominator = numerator[0]*denominator[1], numerator[1]*denominator[0]
if denominator < 0:
    numerator *= -1
    denominator *= -1

gcd, _ = denominator, numerator
while _ > 0:
    gcd, _ = _, gcd%_

print(numerator//gcd, denominator//gcd)