n, a, b = 3.times.map { gets }
n = n.to_i
a = a.split(' ').map(&:to_i)
b = b.split(' ').map(&:to_i)
count = 0
current_max_score = 0
a.sort.permutation.each do |array|
  score = n.times.map do |i|
    diff = array[i] - b[i]
    diff >= 0 ? diff : 0
  end.sum
  if score > current_max_score
    count = 1
    current_max_score = score
  elsif score == current_max_score
    count += 1
  end
end
puts count