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();
      	boolean d;
      
      	if((a+b) == c || (b+c) == a || (c+a) == b) d = true;
		else d = false;

		if(d) System.out.println("Yes");
      	else System.out.println("No");
	}
}