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