import java.util.*;
public class Main {

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