#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <set>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <cstdio>
#include <cstring>
#include <iterator>
#include <bitset>
#include <unordered_set>
#include <unordered_map>
#include <fstream>
#include <iomanip>
#include <cassert>
#include <utility>
#include <memory>
#include <functional>
#include <deque>
#include <cctype>
#include <ctime>
#include <numeric>
#include <list>
#include <iomanip>

#if __cplusplus >= 201103L
#include <array>
#include <tuple>
#include <initializer_list>
#include <forward_list>

#define cauto const auto&
#else

#endif

using namespace std;


typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

typedef vector<int> vint;
typedef vector<vector<int> > vvint;
typedef vector<long long> vll;
typedef vector<vector<long long> > vvll;

#define VV(T) vector<vector< T > >

template <class T>
void initvv(vector<vector<T> > &v, int a, int b, const T &t = T()){
    v.assign(a, vector<T>(b, t));
}

template <class F, class T>
void convert(const F &f, T &t){
    stringstream ss;
    ss << f;
    ss >> t;
}

#define GET_MACRO(_1, _2, _3, NAME, ...) NAME
#define _rep(i,n) _rep2((i),0,(n))
#define _rep2(i,a,b) for(int i=(a);i<(b);++i)
#define rep(...) GET_MACRO(__VA_ARGS__, _rep2, _rep)(__VA_ARGS__)
#define ALL(v) (v).begin(),(v).end()
#define PB push_back
#define fi first
#define se second
#define mkp make_pair
#define DEBUG
#ifdef DEBUG
#define dump(x)  cout << #x << " = " << (x) << endl;
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
#else
#define dump(x) 
#define debug(x) 
#endif

#define MOD 1000000007LL
#define EPS 1e-8
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
#define maxs(x,y) x=max(x,y)
#define mins(x,y) x=min(x,y)

// Mod int
// const int MOD = 1000000007;
struct mint{
    ll x;
    mint():x(0){}
    mint(ll x):x((x%MOD+MOD)%MOD){}
    mint operator+=(const mint& a){ if((x+=a.x)>=MOD) x-=MOD; return *this;}
    mint operator-=(const mint& a){ if((x+=MOD-a.x)>=MOD) x-=MOD; return *this;}
    mint operator*=(const mint& a){ (x*=a.x)%=MOD; return *this;}
    mint operator+(const mint& a)const{ return mint(*this) += a;}
    mint operator-(const mint& a)const{ return mint(*this) -= a;}
    mint operator*(const mint& a)const{ return mint(*this) *= a;}
    bool operator==(const mint& a)const{ return x == a.x;}
    friend ostream& operator<<(ostream& os, const mint& mi)  
    {  
        os << mi.x;  
        return os;  
    }
};

void mainmain(){
	int n;
	cin>>n;
	vint T(n);
	rep(i,n) cin>>T[i];
	vint A(n);
	rep(i,n) cin>>A[i];
	vint fixed(n,-1);
	fixed[0]=T[0];
	bool ok = true;
	rep(i,1,n){
		if(T[i]!=T[i-1]){
			// fixed[i]=T[i];
			if(T[i]>A[i]){
				// cout<<T[i]<<" "<<A[i]<<endl;
				ok=false;
			}
		}
	}
	rep(i,n-1){
		if(A[i]!=A[i+1]){
			if(A[i]>T[i]){
				// cout<<T[i]<<" "<<A[i]<<endl;
				ok=false;
			}
		}
	}
	if(T[n-1]!=A[0]) ok=false;
	if(!ok){
		cout<<0<<endl;
		return;
	}
	mint ans(1);
	rep(i,1,n-1){
		bool f = false;
		if(T[i]!=T[i-1]) f=true;
		if(A[i]!=A[i+1]) f=true;
		if(!f){
			ans *= mint(min(T[i],A[i]));
		}
	}
	cout<<ans<<endl;
}


signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout<<fixed<<setprecision(20);
    mainmain();
}

Measured memory_bytes: 1408