import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		if(a==b+c||b==a+c||c==a+b) System.out.println("Yes");
		else System.out.println("No");
		scanner.close();
	}

}
