import Foundation

let N = Int(readLine()!)
var input = readLine()!.componentsSeparatedByString(" ").map { Int($0)! }

input.sortInPlace()

var sum = 0
for i in input {
    sum += i
}

if input[N-1] < sum - input[N-1] {
    print("Yes\n")
} else {
    print("No\n")
}