import java.util.Scanner


object Main {
  def main(args: Array[String]): Unit = {
    val sc = new Scanner(System.in)
    val n = sc.nextInt()
    val ls = List.fill(n)(sc.nextInt())

    val m = ls.max

    val ans = if (ls.sum - m > m) "Yes" else "No"

    println(ans)
  }
}