import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		String input = scanner.nextLine();

		String[] data = input.split("\\s");

		int a = Integer.parseInt(data[0]);
		int b = Integer.parseInt(data[1]);
		int c = Integer.parseInt(data[2]);
		if( a==(b+c) || b==(a+c) || c==(b+a)){
			System.out.print("Yes");
		}else{
			System.out.print("No");
		}
	}
}