import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);

		int a = in.nextInt();
		int b = in.nextInt();
		int c = in.nextInt();

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