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

}
