import java.util.*;
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) {
			System.out.println("Yes");
			
		} else if(a+c==b) {
			System.out.println("Yes");
			
		} else if(b+c==a) {
			System.out.println("Yes");
			
		} else {
			System.out.println("No");
		}
			
			 
  	}
}