import java.io.*;
public class Main{
    public static void main(String[] args) throws IOException{
        BufferedReader bf = 
            new BufferedReader(new InputStreamReader(System.in));
        int N = Integer.parseInt(bf.readLine());
        String[] str = bf.readLine().split(" ");
        int max = 0,
            sum = 0;
        for(int i = 0; i < N; i++){
            int value = Integer.parseInt(str[i]);
            sum += value;
            if(max < value){
                max = value;
            }
        }
        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