#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<ll, ll> P;
typedef vector<ll> VI;
typedef vector<VI> VVI;
const ll MOD = 1000000007;
const ll INF = 4611686018427387903;
#define REP(i, n) for (int i = 0; i < n; i++)
#define ALL(v) v.begin(), v.end()

ll power(ll x, ll y) {
	if (y==0) return 1;
	else if (y==1) return x%MOD;
	else if (y%2==0) { ll pow=power(x,y/2); return (pow*pow)%MOD; } 
	else { ll pow=power(x,y/2); return ((pow*pow)%MOD)*x%MOD; }
}

int main(){
	int n; cin >> n;
	VI a(n); REP(i,n) cin >> a[i];
	REP(i,n){
		if(a[i]==0){
			cout << 0 << endl;
			return 0;
		}
	}
	vector<P> b(0);
	REP(i,n){
		if(a[i]!=1)
			b.push_back({a[i],i});
		else if(i==0||i==n-1)
			b.push_back({a[i],i});
	}
	ll ans=1;
	REP(i,b.size()){
		ll p=1;
		if(i>0)
			p=b[i].second-b[i-1].second;
		ll c=b[i].first;
		ans*=power(c,p); ans%=MOD;
		for(int j=i+1;j<b.size();j++){
			c*=b[j].first;
			if(c>1000000000)
				break;
			ans*=power(c,(b[j].second-b[j-1].second)*p);
			ans%=MOD;
		}
	}
	cout << ans << endl;
	return 0;
}