#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int n, sum = 0, ma = 0;
	cin >> n;

	for(int i=0;i<n;i++){
		int l;
		cin >> l;
		sum += l;
		ma = max(ma, l);
	}
	if(sum-ma>ma) cout << "Yes" << endl;
	else cout << "No" << endl;
}