import java.util.*;
public 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){
	System.out.println("Yes");
	}else if(b==a+c){
	System.out.println("Yes");
	}else if(c==a+b){
	System.out.println("Yes");
	}
	}
	}
