import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		
		int[] L = new int[N];
		int max = -1;
		int maxI = -1;
		for (int i = 0; i < N; i++) {
		    L[i] = sc.nextInt();
		    if (max < L[i]) {
		        max = L[i];
		        maxI = i;
		    }
		}
		
		int sumExcludedMax = 0;
		for (int i = 0; i < N; i++) {
		    if (i == maxI) continue;
		    sumExcludedMax += L[i];
		}
		
		if (max < sumExcludedMax) {
		    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