import java.io.*;
import java.util.*;
class Program{

}
class Main{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int N = in.nextInt();
        int temp,max = Integer.MIN_VALUE, sum = 0;
        while(N-->0){
            temp = in.nextInt();
            max = Math.max(temp, max);
            sum += temp;
        }
        if (sum-max>max) 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