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();

    String ans = "No";
    if (a + b == c) ans = "Yes";
    if (b + c == a) ans = "Yes";
    if (a + c == b) ans = "Yes";

    System.out.println(ans);
    
  }
}