import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
      
      	if(a>b&&a>c){
			if(a==(b+c)){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}
		if(b>a&&b>c){
			if(b==(a+c)){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}
		if(c>a&&c>b){
			if(c==(a+b)){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}
    }
}