import java.util.Scanner;
public class Main {
    public static void main(String[] args){
        try(Scanner sc = new Scanner(System.in)){
            int n = Integer.parseInt(sc.nextLine());
            String[] lslist = sc.nextLine().split(" ");
            int[] lary = new int[lslist.length];
            
            for(int i = 0; i < lslist.length; i++){
                lary[i] = Integer.parseInt(lslist[i]);
            }

            int max = lary[0];
            int lsum = lary[0];
            for(int i = 1; i < lary.length; i++){
                max = Math.max(lary[i], max);
                lsum += lary[i];
            }
            lsum -= max;
            
            if(lsum > max){
                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