import java.util.*

fun main(args: Array<String>) {
    val sc = Scanner(System.`in`)
    val length: Int = sc.nextInt()
    val list = mutableListOf<Int>()

    for (x in 0 until length) {
        list.add(sc.nextInt())
    }

    val sum = list.sum()
    val max = list.max()?:0

    if (max < (sum-max)){
        println("Yes")
    }else{
        println("No")
    }

}
