import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ

		Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();


	if (a + b == c  || b + c == a || c + a == b) {

			System.out.println("Yes");

		} else {

			System.out.println("No");

		}
	}
}
