#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, s;
  scanf("%d%d%d", &a, &b, &s);
  int req = abs(a) + abs(b);
  if (req > s) {
    printf("No\n");
  } else {
    int cur = s - req;
    if (cur & 1) {
      printf("No\n");
    } else {
      printf("Yes\n");
    }
  }
  return 0;
}
