#include<iostream>
#include<map>
#include<vector>
#include <algorithm>
#include<math.h>
#include <iomanip>
#include<set>
#include <numeric>
#include<string>
using namespace std;

int main()
{
    int n, cnt = 0;
    cin >> n;
    vector<int> a(n), b(n), sum1;
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < n; i++) cin >> b[i];
    sort(a.begin(), a.end());
    do {
        int tsum = 0;
        for (int i = 0; i < n; i ++){
            if (a[i] > b[i]) tsum += (a[i] - b[i]);
        }
        sum1.push_back(tsum);
    }while (next_permutation(a.begin(), a.end()));
    sort(sum1.begin(), sum1.end(), greater());
    for (int i = 0; i < sum1.size(); i++){
        if (sum1[i] == sum1[0]) cnt++;
    }
    cout << cnt << endl;
}