/*
* Author. Silviase(@silviasetitech)
* For AtCoder
*/

import java.util.*;
import java.lang.*;
import java.math.*;


public class Main {
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        
        int n = sc.nextInt();
        int[] ar = new int[n];
        for (int i = 0; i < n; i++) {
            ar[i] = sc.nextInt();
        }
        Arrays.sort(ar);
        int sum = 0;
        for (int i = 0; i < n-1; i++) {
            sum += ar[i];
        }
        if (sum > ar[n-1]) {
            System.out.println("Yes"); 
        } else {
            System.out.println("No");
        }

        sc.close();

    }

    public static void intArrayScan(int[] array) {
        Scanner sc = new Scanner(System.in);
        for (int i = 0; i < array.length; i++) {
            array[i] = sc.nextInt();
        }
        sc.close();
    }

    public static void intArrayPrint(int[] array) {
        for (int i = 0; i < array.length; i++) {
            System.out.println(array[i]);
        }
    }

    public static void intSquareArrayScan(int[][] array, int h, int w) {
        Scanner sc = new Scanner(System.in);
        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                array[i][j] = sc.nextInt();
            }
        }
        sc.close();
    }

    public static void intArrayListScan(List<Integer> list, int n) {
        Scanner sc = new Scanner(System.in);
        for (int i = 0; i < n; i++) {
            list.add(sc.nextInt());
        }
        sc.close();
    }

    public static void intArrayListPrint(List<Integer> list) {
        for (int i = 0; i < list.size(); i++) {
            System.out.println(list.get(i));  
        }
    }
}
/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