n1 = gets.to_i
a = gets.split.map(&:to_r)
n2 = gets.to_i
b = gets.split.map(&:to_r)

numer = a[0]
denom = b[0]
(1...n1).each{|i| numer /= a[i]}
(1...n2).each{|i| denom /= b[i]}

ans = numer / denom
puts "#{ans.numerator} #{ans.denominator}"