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