#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using P = pair<int,string>;

int main() {
int a,b,c;
cin >> a >> b >> c;
if(a+b == c || b+c == a || c+a==b) xout << "Yes" << endl;
else cout << "No" << endl ;
 }