import java.util.*;

class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int n=sc.nextInt();
    int[] l=new int[n];
    for(int i=0;i<n;i++){
      l[i]=sc.nextInt();
    }
    int sum=0;
    int max=0;
    for(int i=0;i<n;i++){
      sum+=l[i];
      max=Math.max(max,l[i]);
    }
    if(sum>max*2){
      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