import Foundation
 
let input_line: String = readLine()!
let split: [String] = input_line.components(separatedBy: " ")
 
let a = Int(split[0])!
let b = Int(split[1])!
let c = Int(split[2])!

if (a+b==c || a+c==b || b+c==a){
    print("Yes")
}else{
    print("No")
}
