import java.util.*;
public class Main {

		static void solve() {
			Scanner sc = new Scanner(System.in);
			int n = sc.nextInt();
			int sum = 0;
			String res = "No";
			int[] array = new int [n];
			for(int i = 0;i<n;i++) {
				array[i] = sc.nextInt();
				sum+=array[i];
			}
			int max = array[0];
			for(int numb:array) {
				if(numb>=max) 
					max = numb;
				}
			if(max<sum-max) {
				res = "Yes";
			}
		
			System.out.println(res);
			sc.close();
		}
	public static void main(String[] args) {
		solve();

	}

}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz