#include <bits/stdc++.h>
using namespace std;
const long long inf = 9e18;
const double pi = acos(-1.0);
const long long M = 1e9 + 7;
const long long N = 1e5 + 5;
long long power(long long b, long long n) {
  long long ans(1);
  while (n) {
    if (n & 1) ans = (ans * b) % M;
    b = (b * b) % M;
    n >>= 1;
  }
  return ans;
}
long long prime(long long n) {
  if (n <= 1) return 0;
  if (n <= 3) return 1;
  if (n % 2 == 0 || n % 3 == 0) return 0;
  for (long long i = 5; i * i <= n; i += 6)
    if (n % (i) == 0 || n % (i + 2) == 0) return 0;
  return 1;
}
int32_t main() {
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);
  cout.tie(NULL);
  long long a, s, d;
  cin >> a >> s >> d;
  if (a == 0 && s == 0) {
    if (d % 2 == 0)
      cout << "YES";
    else {
      cout << "NO";
    }
    return 0;
  }
  long long sum = 0;
  sum += abs(a) + abs(s);
  if (sum > d) {
    cout << "NO";
  } else {
    sum = d - sum;
    if (sum % 2 == 0) {
      cout << "YES";
    } else
      cout << "NO";
  }
}
