import java.util.Scanner;

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 M = 0, S = 0;
        for (int i = 0; i < N; ++i){
            L[i] = sc.nextInt();
            M = Math.max(M, L[i]);
            S += L[i];
        }

        System.out.println(2 * M < S ? "Yes" : "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