import java.util.Scanner;

public class Main {

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