#include <bits/stdc++.h>
using namespace std;
void solve() {
  long long int a, b, s, c;
  cin >> a >> b >> s;
  c = abs(a) + abs(b);
  if (s < c) {
    cout << "No" << endl;
    return;
  } else if (s == c) {
    cout << "Yes" << endl;
    return;
  }
  s -= c;
  if (s % 2 == 0) {
    cout << "Yes" << endl;
    return;
  }
  cout << "No" << endl;
  return;
}
int main() { solve(); }
