import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int[] a=new int[3];
    for(int i=0;i<3;i++){
      a[i]=sc.nextInt();
    }
    Arrays.sort(a);
    if(a[1]+a[0]==a[2]){
      System.out.println("Yes");
    }else{
      System.out.println("No");
    }
  }
}