import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		int N, max = 0, sum = 0;
		int a[] = new int[100];

		Scanner sc = new Scanner(System.in);
		N = sc.nextInt();

		for(int i = 0; i < N; i++) {
			a[i] = sc.nextInt();
			sum = sum + a[i];

			if(max < a[i]) {
				max = a[i];
			}
		}

		if(max < sum - max) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}

		sc.close();
	}

}
/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