import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] L = new int[n];
    int sum = 0;
    for(int i = 0; i < n; i++) {
      L[i] = sc.nextInt();
      sum += L[i];
    }
    Arrays.sort(L);
    String ans = "No";
    if(L[n - 1] < (sum - L[n - 1])) ans = "Yes";
    System.out.println(ans);
  }
}
/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