import Foundation

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

input.sortInPlace(by: {$0 > $1})

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

if input[0] < sum - input[0] {
    print("Yes\n")
} else {
    print("No\n")
}
