#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <set>
#include <cmath>
#include <iomanip>
#include <stack>
#include <queue>
#include <deque>
#include <bitset>
#include <tuple>
#include <map>
#include <functional>

#define fi first
#define se second
#define rep(i,n) for(ll i=0;i<(n);i++)
#define rrep(i,n) for(ll i=(n)-1;i>=0;i--)
#define orep(i,n) for(ll i=1;i<=(n);i++)

#define nfor(i,s,n) for(ll i=(s);i<(n);i++)
#define dfor(i,s,n) for(ll i=(s)-1;i>=n;i--)
#define INF 9e18//9223372036854775807

#define all(a)  a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()

#define chmax(x,y) x = max(x,y)
#define chmin(x,y) x = min(x,y)

#define pb push_back
#define pob pop_back

#define vc vector

#define YES cout << "Yes" << endl;
#define NO cout << "No" << endl;
#define YN {cout << "Yes" << endl;}else{cout << "No" << endl;}
#define dame cout << -1 << endl;

#define vc_unique(v) v.erase(unique(v.begin(), v.end()), v.end())
#define vc_remove(v,x) v.erase(remove(v.begin(), v.end(),x), v.end())
#define vc_rotate(v) rotate(v.begin(), v.begin()+1, v.end())

#define pop_cnt(s) ll(popcount(uint64_t(s)))
#define next_p(v) next_permutation(v.begin(),v.end())

#ifndef ONLINE_JUDGE
#define _GLIBCXX_DEBUG
#endif

using namespace std;
using ll = long long;
using ld = long double;
using pll = pair<ll,ll>;
using vvvvvl = vector<vector<vector<vector<vector<ll> > > > >;
using vvvvl = vector<vector<vector<vector<ll> > > >;
using vvvl = vector<vector<vector<ll> > >;
using vvl = vector<vector<ll> >;
using vl = vector<ll>;
using Graph = vector<vector<ll> >;

template<class T> using pq = priority_queue<T,vc<T>,less<T> >;
template<class T> using pq_g = priority_queue<T,vc<T>,greater<T> >;

ll dx[4] = {0,1,0,-1};//vl dx = {1,1,0,-1,-1,-1,0,1};
ll dy[4] = {1,0,-1,0};//vl dy = {0,1,1,1,0,-1,-1,-1};

bool out_grid(ll i, ll j, ll h, ll w){//trueならcontinueする
    return(!(0 <= i && i < h && 0 <= j && j<w));
}

ll MOD = 998244353;

ll modpow(ll x,ll y){
    ll a = x;
    a %= MOD;
    ll cnt = 0;
    ll ans = 1;
    while(y > 0){
        if((1ll << cnt) & y){
            y ^= (1ll << cnt);
            ans *= a;
            ans %= MOD;
        }
        a = a*a;
        a %= MOD;
        cnt++;
    }
    return ans;
}

ll npow(ll x,ll y){
    ll a = x;
    ll cnt = 0;
    ll ans = 1;
    while(y > 0){
        if((1ll << cnt) & y){
            y ^= (1ll << cnt);
            ans *= a;
        }
        a = a*a;
        cnt++;
    }
    return ans;
}

void print(ld x){printf("%.20Lf\n", x);}

//////////////////////////////////////////////////////////////////

int main(){
    ll N;
    cin >> N;
    vl X(N);
    vl Y(N);
    rep(i,N)cin >> X[i];
    rep(i,N)cin >> Y[i];

    vl Z;
    rep(i,N)Z.pb(X[i]);
    rep(i,N)Z.pb(Y[i]);

    sort(all(X));
    sort(all(Y));
    sort(all(Z));

    ll cntX = 0;
    ll cntY = 0;
    
    rep(i,N){
        if(X[cntX] == Z[i])cntX++;
        else cntY++;
    }

    ll ans = 1;

    while(cntX > 0){
        ans *= cntX;
        ans %= MOD;
        cntX--;
    }

    while(cntY > 0){
        ans *= cntY;
        ans %= MOD;
        cntY--;
    }

    cout << ans << endl;
}