#include <iostream>
#include <iomanip>
#include <queue>
#include <vector>
#include <cmath>
#include <algorithm>
#include <cstring>
#include <bitset>
#include <set>
#include <cstdio>
#include <string>
#include <stack>
#include <map>
#include <sstream>

#define ll long long
#define sz(s) (int)s.size()
#define all(x) x.begin(), x.end()
using namespace std;
void AIA()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}
void file()
{
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
}
const int OO = 1e9 + 7;
const long double PI = acos(-1);
int dx[] = {0, 0, 1, -1, 1, -1, 1, -1}, dx4[] = {0, 1, 0, -1};
int dy[] = {1, -1, 0, 0, 1, -1, -1, 1}, dy4[] = {1, 0, -1, 0};
ll fastPowWithMod(ll n, ll pow, int mod)
{
    n %= mod;
    ll res = 1;
    while (pow != 0)
    {
        if ((pow & 1) == 1)
        {
            res = res * n % mod;
        }
        n = n * n % mod;
        pow /= 2;
    }
    return res;
}
ll modInv(ll n)
{
    return fastPowWithMod(n, OO - 2, OO);
}
int main()
{
    // Verify Your thought before Coding.
    AIA();
    file();
    int n;
    cin >> n;
    vector<ll> a(n + 1), b(n + 1), diff(n + 1);
    ll fact[10000001] = {0};
    fact[0] = 1;
    for (int i = 1; i <= n; i++)
        cin >> a[i];
    for (int i = 1; i <= n; i++)
        cin >> b[i];
    for (int i = 1; i <= n; i++)
        diff[i] = b[i] - a[i];
    for (ll i = 1; i <= 10000000; i++)
        fact[i] = fact[i - 1] * i % OO;
    ll all = 0, res = 1;
    for (int i = 1; i <= n; i++)
    {
        if (diff[i] < 0 || diff[i] % i != 0)
        {
            cout << 0;
            return 0;
        }
        res = res * modInv(fact[diff[i] / i]) % OO;
        all += diff[i] / i;
    }
    res = res * fact[all] % OO;
    cout << res;
}