import java.util.Scanner;

public class Main {

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