#include<atcoder/all>
using namespace atcoder;

#include <bits/stdc++.h>
template<class T> inline bool chmin(T&a, T b){if(a > b){a = b; return true;}else{return false;}}
template<class T> inline bool chmax(T&a, T b){if(a < b){a = b; return true;}else{return false;}}
#define ll long long
#define double long double
#define rep(i,n) for(int i=0;i<(n);i++)
#define REP(i,n) for(int i=1;i<=(n);i++)
#define mod (ll)(1e9+7)
#define inf (ll)(3e18+7)
#define eps (double)(1e-9)
#define pi (double) acos(-1)
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
using namespace std;

using mint = modint998244353;

int main() {
    int n;
    cin >> n;
    vector<ll> x(n), y(n);
    rep(i, n)cin >> x[i];
    rep(i, n)cin >> y[i];

    sort(all(x));
    sort(rall(y));

    int cnt1 = 0, cnt2 = 0;
    rep(i, n)if(x[i] < y[i])cnt1++;
    rep(i, n)if(x[i] > y[i])cnt2++;

    mint ans = 1;
    REP(i, cnt1)ans *= i;
    REP(i, cnt2)ans *= i;
    
    cout << ans.val() << endl;
}