n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
from itertools import permutations
p = []
for c in list(permutations(a)):
    tmp = 0
    for i in range(n):
        if c[i] > b[i]:
            tmp += abs(c[i]-b[i])
    p.append(tmp)
pmax = max(p)
res = 0
for pp in p:
    if pp == pmax:
        res += 1

print(res)