import java.util.*;
class Main{
    public static void main(String[] args) {
        Scanner scn=new Scanner(System.in);
        int n=scn.nextInt();
        int[] side=new int[n];
        int max=-1;
        int num=-1;
        for(int i=0;i<n;i++){
            side[i]=scn.nextInt();
            if(side[i]>max){ 
                max=side[i];
                num=i;
            }
        }   
        int total=0;
        for(int i=0;i<n;i++){
            if(i!=num) total+=side[i];
        }
        if(total>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