import java.util.Scanner;
 
public class Main {
	public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      int N =sc.nextInt();
      
      int max =0;//aの中の最大値
      int b = 0;//合計
      for(int i=0; i<N; i++){
      int a =sc.nextInt();
        b = b+a;//入力したであろう値を合計している
        max = Math.max(max,a);//aの中の最大値
      }
      if(max<b-max){
      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