import java.util.*; 
 
 class atcoder2{ 
 
 
 public static void main(String args[]){ 
  Scanner s=new Scanner(System.in); 
 
  int[] L=new int[s.nextInt()]; 
 
  for(int i=0;i<L.length;i++){ 
   L[i]=s.nextInt(); 
  } 
 
 
         int sumOfLeft=0; 
         int max=0; 
         int side=0; 
          for(int i=0;i<L.length;i++){ 
              side=L[i]; 
              if(max<side){ 
                  sumOfLeft+=max; 
                  max=side; 
              } 
              else sumOfLeft+=side; 
          } 
          if(sumOfLeft>max) System.out.println("No"); 
          else System.out.println("Yes"); 
 
     } 
 
 
 
 
 }