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