N, = map(int, input().split())
from itertools import permutations
X = list(map(int, input().split()))
Y = list(map(int, input().split()))
from collections import defaultdict
D = defaultdict(int)
mx = 0
for x in permutations(X, N):
    R = 0
    for i in range(N):
        a,b=x[i],Y[i]
        if a>b:
            R+=a-b
    D[R] += 1
    mx = max(R, mx)
print(D[mx])