import java.util.Scanner;
public class Main {

    public static void main(String[] args) {

        Scanner scan=new Scanner(System.in);

        int a=scan.nextInt();
        int b=scan.nextInt();
        int c=scan.nextInt();
        if(a+b==c || b+c==a || c+a==b)
            System.out.println("Yes");
        else
            System.out.println("No");

    }
}
