import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    
    int sum = 0;
    int max = 0;
    int b = 0;
    for(int i=0;i<a;i++){
      b=sc.nextInt();
      sum+=b;
      if(max<=b){
        max=b;
      }
    }
    sum-=max;
    if(max<sum)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