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

          }
     }
}