import java.util.Scanner;


public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//ARC004
		//https://arc004.contest.atcoder.jp/tasks/arc004_1
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		
		int N = Integer.parseInt(sc.next());
		int longest=0;
		int sum=0;
		for(int i=0;i<N;i++){
			int length = Integer.parseInt(sc.next());
			if(length > longest) longest = length;
			sum += length;
		}
		int other_sum_length = sum - longest;
		if(other_sum_length > longest){
			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