#include<iostream>
#include<cstdio>
using namespace std;
int main(){
    int n,l[105];
	cin >> n;
	int m=0,s=0;
	for(int i=0;i<n;i++) {
		cin >>l[i];
		s+=l[i] ;
		if(l[i]>m) m=l[i] ;
	}
	if(2*m<s) cout <<"Yes" ;
	else cout <<"No";
    return 0;
}