n_a = gets.to_i
A = gets.split.map(&:to_i)
n_b = gets.to_i
B = gets.split.map(&:to_i)

a = A[1..-1].map(&:abs).inject(:*)
b = B[1..-1].map(&:abs).inject(:*)
n = [a, b].inject(:lcm)

a = A[1..-1].inject(:*)
b = B[1..-1].inject(:*)

r = Rational(A[0] * n / a, B[0] * n / b)

puts [r.numerator, r.denominator].join(' ')