import java.io.*;
import java.math.*;
import java.util.*;

class Main {
	public static void main(String args[]) {
    	Scanner sc = new Scanner(System.in);
      	int n = sc.nextInt();
      	//List<Integer> l = new ArrayList<Integer>();
      	int max = 0;
      	int tsum = 0;
      	while(n > 0) {
        	int ele = sc.nextInt();
          	//l.add(ele);
          	n--;
          	max = max > ele ? max : ele;
          	tsum += ele;
        }
	    System.out.println((tsum - max) > 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