import java.util.Scanner;

public class Main {

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

}
