import java.util.Scanner;
public class Main {
 
	public static void main(String[] args) {
		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");
		}
 
 
 
	}
 
}