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