import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int c = Integer.parseInt(sc.next());

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

	}
}