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