import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        Integer n = sc.nextInt();
        Integer[] a = new Integer[n];
        Integer max = 0, sum=0;
        for(int i=0;i<n;i++){
            a[i] = sc.nextInt();
            sum += a[i];
            max = Math.max(a[i], max);
        }
        if(max < sum - max){
            System.out.println(new String("Yes"));
        }
        else{
            System.out.println(new String("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