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