import java.util.Scanner;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();
    if((a+b) == c || (a+c) == b || (b+c) == a){
      System.out.println("Yes");
    }
    else
      System.out.println("No");
  }
}
