import scala.io.StdIn._

object Main extends App {
  def start(inputs: Array[String]): Int = {
    val nums: Array[Int] = inputs(1).split(" ").map(_.toInt)
    val max = nums.max
    val others = nums.filter(_ != nums.max)
    if (max < others.sum) {
      println("Yes")
    } else {
      println("No")
    }
    max
  }

  var inputs = Array(readLine())
  inputs = inputs :+ readLine()

  start(inputs)
}