#include <bits/stdc++.h>
using namespace std;
void solve() {
  long long int a, b, s;
  cin >> a >> b >> s;
  a = sqrt(a * a);
  b = sqrt(b * b);
  if ((a + b) > s) {
    cout << "No";
  } else {
    if ((s - (a + b)) % 2 == 0) {
      cout << "Yes";
    } else {
      cout << "No";
    }
  }
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  solve();
}
