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();

    if (((a + b) == c) || ((b + c) == a) || ((a + c) == b)) { 
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }

  }
}