#include<bits/stdc++.h>
using namespace std;
#define ll long long

int main()
{
    int a[3];
    while(cin >> a[0] >> a[1] >> a[2])
    {
        sort(a,a + 3);
        if(a[0] + a[1] == a[2])
        cout << "Yes" << endl;
        else
        cout << "No" << endl;
    }
    return 0;
}
