import java.util.Scanner;

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