import java.util.Scanner;

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();

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

		sc.close();

	}

}