from itertools import permutations
n=int(input())
f=lambda:map(int,input().split())
*a,=f()
*b,=f()
m=[]
p=permutations(a)
for aa in p:
	s=sum([max(b[i]-aa[i],0) for i in range(n)])
	m+=[s]
print(m.count(max(m)))