#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int a, b, c, m;
  cin >> a >> b >> c;
  if (a < 0) a = a * -1;
  if (b < 0) b = b * -1;
  if (a + b > c)
    cout << "No";
  else if (a + b == c)
    cout << "Yes";
  else {
    m = c - a - b;
    if (m % 2 == 0 && m != 1)
      cout << "Yes";
    else
      cout << "No";
  }
}
