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