import java.util.*;

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();
    System.out.println(a+b==c || (b+c==a || c+a==b) ? "Yes" : "No");
  }
}
