import java.util.Scanner;


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

}

/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