import java.util.*;

class Main{
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] len = new int[n];
        int sum = 0;
        int max = 0;
        for(int i=0;i<n;i++){
        	int temp = sc.nextInt();
            if(temp>max){
              max = temp;
            }
            sum+=temp;
        }
		System.out.println(max<sum-max?"Yes":"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