import java.util.*;
 
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = Integer.parseInt(sc.next());
        int[] L = new int[N];
        int max = 0;
        int sum = 0;
        for(int i=0; i<N; i++) {
            L[i] = Integer.parseInt(sc.next());
            if(max < L[i]) {
                max = L[i];
            }
            sum += L[i];
        }
        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