import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
        int hen[] = new int[n]; 
        int big;
		for(int i = 0;i < n; i++){
          hen[i] = sc.nextInt();
        }
        Arrays.sort(hen);
        big = hen[n - 1];
        for(int i = 0;i < n - 1; i++){
          big -= hen[i];
        }
        if(big < 0){
        	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