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();
		int ary[] = {a, b, c};
		Arrays.sort(ary);
		if(ary[2] == ary[0] + ary[1]) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}
