import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		ArrayList<Integer> l = new ArrayList<>();
		int sum = 0;
		int num;
		for(int i = 0; i < n; i++) {
			num = sc.nextInt();
			l.add(num);
			sum += num;
		}
		if(sum > Collections.max(l) * 2) {
			System.out.println("Yes");
		} else {
		    System.out.println("No");
		}
	}
}
/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