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

m = 0
ans = 0
a.permutation do |a|
  s = 0
  i = 0
  while i < n
    if (d = a[i] - b[i]) && d > 0
      s += d
    end
    i += 1
  end
  if s > m
    ans = 1
    m = s
  elsif s == m
    ans += 1
  end
end

puts ans