#include<iostream>
#include<stdio.h>
#include<stdlib.h>
#include<algorithm>
#include<vector>
#include<string.h>
#include<math.h>
#include<map>
#include<iomanip>
#include<queue>
#include<set>

#define rep(i,n) for(int (i) = 0; i < (n); i++)

using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;

//const ll mod = 1e9 + 7;
const ll mod = 998244353;
const int inf = 123456;
const ll mx = 1e9;

int main(){
    int n;
    cin >> n;
    vector<int> a(n) , b(n) , ind(n);
    rep(i,n)cin >> a[i];
    rep(i,n)cin >> b[i];
    rep(i,n)ind[i] = i;
    sort(a.begin() , a.end());
    sort(b.begin() , b.end());
    map<ll , int> cnt;
    do{
        ll cost = 0;
        rep(k,n){
            cost += max(0 , a[ind[k]] - b[k]);
        }
        cnt[cost]++;
    }while(next_permutation(ind.begin() , ind.end()));
    ll mx_cost = -1;
    int ans = 0;
    for(auto i : cnt){
        if(mx_cost <= i.first){
            mx_cost = i.first;
            ans = i.second;
        }
    }
    cout << ans << endl;
    return 0;
}