import java.util.*;
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 || a+c==b ||b+c==a) System.out.println("Yes");
		else System.out.println("No");
			

	}
}
