import math
import itertools

N = int(input())

a_l = list(map(int,input().split()))
b_l = list(map(int,input().split()))

l = list(itertools.permutations(a_l))

ans = 0
max_n = 0


for l_i in l:
    ll = list(l_i)
    s = 0
    for i in range(N):
        if ll[i] - b_l[i] > 0:
            s += ll[i] - b_l[i]
    if s > max_n:
        ans = 1
        max_n = s
    elif s == max_n:
        ans +=1    



print(ans)