import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
		long length[] = new long[num];
		long max = 0;
		long sum = 0;
		for(int i = 0; i < num; i ++) {
			length[i] = sc.nextInt();
			max = Math.max(max, length[i]);
			sum += length[i];
		}
		sum -= max;
		boolean canDraw = max < sum;
		System.out.println(canDraw ? "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