import java.util.Scanner;
import java.util.Arrays;
class Main{
 public static void main(String args[]){
Scanner sc=new Scanner(System.in);
int a[]=new int[3];
a[0]=sc.nextInt();
a[1]=sc.nextInt();
a[2]=sc.nextInt();
Arrays.sort(a);
System.out.println(a[0]+a[1]==a[2]? "Yes":"No");

 }
  }
