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