#include<iostream>
int main()
{
   unsigned int max, n, sum, temp ;
   n = max = sum = 0;
   std::cin >> n;
   while (n --)
   {
     std::cin >> temp;
     max = max > temp ? max : temp;
     sum += temp;
   }
std::cout << sum > (2*max) ? "Yes":"No";
return 0;
}
