int main(){
    int a, b, c;
 
    cin >> a >> b >> c;
 
    bool flag = true;
 
    if(a+b == c) flag = true;
    else if(a+c == b) flag = true;
    else if(b+c == a) flag = true;
    else flag = false;
 
    if(flag) cout << "Yes" << endl;
    else cout << "No" << endl;
 
    return 0;
 
}