#include "stdafx.h"
#include<iostream>
using namespace std;


int main()
{
	int A, B, C;
	cin >> A >> B >> C;
	if (A + B == C || B + C == A || C + A == B) {
		cout << "Yes" << endl;
	}
	else {
		cout << "No" << endl;
	}
    return 0;
}