from itertools import permutations
from collections import defaultdict


def main():
    n = int(input())
    a = list(map(int, input().split()))
    b = list(map(int, input().split()))

    d = defaultdict(int)
    for aa in permutations(a):
        tot = 0
        for i in range(n):
            tot += max(aa[i] - b[i], 0)
        d[tot] += 1
    print(d[max(d)])


if __name__ == "__main__":
    main()