import java.util.Scanner;

class Main {
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int max = 0;
    int sum = 0;
    while(sc.hasNext()){
      int newone = sc.nextInt();
      if(newone > max){
        max = newone;
      }
      sum = sum + newone;
    }
    sum = sum - max;
    System.out.println(max < sum ? "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