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");
	if(b=a+c)System.out.println("Yes");
	if(c=a+b)System.out.println("Yes");
	}
	}