#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int ans = 0;
  for (int i = 1; i < n; i++) {
    for (int j = i; j < n; j++) {
      int x = i ^ j;
      if (x < j || x > n || i + j <= x) continue;
      ans++;
    }
  }
  cout << ans << endl;
  return 0;
}
