import java.util.*;
public class Main {
	public static void main(String[]args) {
		Scanner sc=new Scanner(System.in);
      int n=sc.nextInt();
      int a[]=new int[n];
      int max=0;
      int m=0;
      for(int i=0;i<n;i++){
        a[i]=sc.nextInt();
        max=Math.max(max,a[i]);
        m+=a[i];
      }
      System.out.println((m>2*max)?"Yes":"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