import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int sum = 0;
		int max = 0;

		for(int i=0;i<N;i++) {
			int val = sc.nextInt();
			if(val >= max) {
				max = val;
				//max_index = i;
			}
			sum += val;
		}
		if (sum > 2*max) System.out.println("Yes");
		else System.out.println("No");
		//System.out.println(sum > 2*max);
	}
}
/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