from itertools import *
from collections import *

N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

ans, maxv = 0, -1
D = defaultdict(int)
for tup in permutations(A):
    v = 0
    for i in range(N):
        v += max(0, tup[i] - B[i])
    D[v] += 1

for k, v in D.items():
    if k > maxv:
        ans = v
        maxv = k
print(ans)