
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;


public class Main {
	public static void main(String[] args) throws IOException{

		Scanner sc = new Scanner(new InputStreamReader(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");
		}
	}
}
