import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner in=new Scanner (System.in);
		int a=in.nextInt();
		int b=in.nextInt();
                int c=in.nextInt();
                if(a+b==c || a+c==b || c+b==a){
                    System.out.println("Yes");
                }else{
                    System.out.println("No");
                }  
	}
}