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