import java.util.Scanner;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        List<Integer> l = new ArrayList<>();
        int max = 0;
        for (int i = 0; i < n; i++) {
            int num = sc.nextInt();
            max = Math.max(max, num);
            l.add(num);
        }

        int sum = 0;
        for (int x : l) {
            sum += x;
        }
        sum -= max;
        if (max < sum) {
            System.out.println("Yes");
            return;
        }
        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