n, a, b = 3.times.map { gets }
n = n.to_i
a = a.split(' ').map(&:to_i)
b = b.split(' ').map(&:to_i)
scores = []
a.permutation.each do |array|
  scores << n.times.sum do |i|
    diff = array[i] - b[i]
    diff >= 0 ? diff : 0
  end
end
max_score = scores.max
puts(scores.count {|s| s == max_score})