from itertools import permutations

n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
scores = {}
for order in permutations(a, n):
    s = 0
    for i in range(n):
        s += max(0, order[i] - b[i])
    if s not in scores:
        scores[s] = 0
    scores[s] += 1
ans_key = -1
ans = 0
for key, value in scores.items():
    if key > ans_key:
        ans_key = key
        ans = value
print(ans)