import java.util.Arrays;
import java.util.Scanner;

class Main{
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		while(sc.hasNext()){
			int[] a=new int[3];
			for(int i=0;i<3;i++) a[i]=sc.nextInt();
			Arrays.sort(a);
			if(a[0]+a[1]==a[2]) System.out.println("Yes");
			else System.out.println("No");
		}
	}
}			