import java.util.Scanner;

public class Main {

	public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);

		int a,b,c;
		a = sc.nextInt();
		b = sc.nextInt();
		c = sc.nextInt();
		
		String ret;
		if ((a+b == c) || (a+c == b) || (b+c == a)){
			System.out.println("Yes");
			return;
		}
		System.out.println("No");
		
		
		
		
	}
}
