import java.util.*;

public class Main {

	public static void main(String[] args) {
		new Main().execute();
	}

	public void execute() {
		Scanner sc = new Scanner(System.in);
		final int N = sc.nextInt();
		int [] Ls = new int [N];
		int sum = 0;
		for(int i=0; i<N; i++) {
			Ls[i] = sc.nextInt();
			sum += Ls[i];
		}
		Arrays.sort(Ls);
		if(Ls[N-1] < (sum - Ls[N-1]) ) {
			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