C_62

#include <iostream>
#include <cmath>
#include <vector>
#include <queue>
#include <algorithm>
#include <string>
#include <stack>
#include <set>
#include <map>
#define pii pair <int,int>
using namespace std;
using ll = long long;
using ld = long double;
void cv(vector <int> &v){
    for (auto x: v) cout<<x<<' ';
    cout<<"\n";
}

void cvv(vector <vector<int>> &v){
    for (auto x: v) cv(x);
    cout<<"\n";
}
int inf = 998244353, ans=0;
int d;
vector <int> qn;
vector <int> ax;
vector <vector <int> > pnt; //points at the distance  = r

int pl(int msk){
    //cout<<"msk = "<<msk<<"\n";
    int res = 0;
    vector <int> use;
    for (int i = 0; i < d; ++i){
        if (msk & (1 << i)){
            use.push_back(i);
        }
    }
    /*cout<<"use\n";
    cv(use);
    cout<<"pnt.size() = "<<pnt.size()<<"\n";*/
    for (int r = 1; r < pnt[0].size(); ++r){
        int fct = 1;
        //cout<<"r = "<<r<<"\n";
        for (int j = 0; j < use.size();++j){
            //cout<<"r use[j] = "<<r<<' '<<use[j]<<"\n";
            //cout<<"pnt[use[j]][r] = "<<pnt[use[j]][r]<<"\n";
            fct *= pnt[use[j]][r];
            fct %= inf;
        }
        res += fct;
        res %= inf;
    }//cout<<"\n";
    return res;
}

int main()
{
    /*ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);*/
    cin>>d;
    qn.resize(d); ax.resize(d);
    for (int &x: ax) cin>>x;
    for (int &x: qn) cin>>x;
    int mx = *max_element(ax.begin(), ax.end());
    pnt.resize(d, vector <int> (mx+1, 0));
    //cout<<"pnt\n";
    //cvv(pnt);
    for (int r = 1; r <= mx; ++r){
        for (int i = 0; i < d; ++i){
            /*cout<<"i r = "<<i<<' '<<r<<"\n";
            cout<<"qn[i] - r = "<<qn[i] - r<<"\n";
            cout<<"qn[i] + r = "<<qn[i] + r<<"\n";*/
            if (qn[i] - r > 0) {
                    pnt[i][r]++;
                    //cout<<"++\n";
            }
            if (qn[i] + r <= ax[i]) {
                    //cout<<"++\n";
                    pnt[i][r]++;
            }
        }
    }
    //cvv(pnt);
    for (int msk = 1; msk < (1<<d);++msk){
        ans += pl(msk);
        ans %= inf;
    }
    cout<<ans<<"\n";
}
/*
1 9 6
*/