n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
from itertools import permutations
ans=[]
for seq in permutations(range(n)):
    cnt=0
    for i in range(n):
        cnt+=max(a[seq[i]]-b[i],0)
    ans.append(cnt)
num=max(ans)
print(ans.count(num))