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"  );
    
  }
}
