#include <bits/stdc++.h>
using namespace std;
int n,l[15];
int a,b,sum;
int main()
{
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>l[i];
		sum+=l[i];
		if(a<l[i])
		{
			a=l[i];
			b=i;
		}
	}
	sum-=a;
	if(a<sum)
	{
		cout<<"Yes";
	}
	else
		cout<<"No";
	return 0;
}