#include<iostream>
#include<map>
#include<algorithm>
using namespace std;
int N;
int A[9],B[9],id[9];
main()
{
	cin>>N;
	map<int,int>mp;
	for(int i=0;i<N;i++)cin>>A[i];
	for(int i=0;i<N;i++)cin>>B[i];
	for(int i=0;i<N;i++)id[i]=i;
	do{
		int ans=0;
		for(int i=0;i<N;i++)ans+=max(0,A[id[i]]-B[i]);
		mp[ans]++;
	}while(next_permutation(id,id+N));
	cout<<(--mp.end())->second<<endl;
}