n = gets.to_i
a = gets.split.map(&:to_i)
m = gets.to_i
b = gets.split.map(&:to_i)

a1 = b.inject(:*) / b[0] * a[0]
b1 = a.inject(:*) / a[0] * b[0]

g = a1.gcd(b1)
a1 /= g
b1 /= g
if b1 < 0
    a1 = -a1
    b1 = -b1
end
puts "#{a1} #{b1}"