import java.util.Scanner;
 
public class Main{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a,b,c;
    a = sc.nextInt();
    b = sc.nextInt();
    c = sc.nextInt();
    if(a + b == c || b + c == a || c + a == b){
      System.out.println("Yes");
    }else{
      System.out.println("No");
    }
  }
}