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



	}

}
