#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, s, d;
  scanf("%d %d %d", &a, &b, &s);
  d = abs(a) + abs(b);
  if (d > s || ((d - s) % 2)) {
    printf("No\n");
  } else {
    printf("Yes\n");
  }
  return 0;
}
