
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();

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