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

    }
}