import java.util.Scanner;

class Program {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		sc.close();

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