#include <iostream>

using namespace std;

int main()
{
    int n, count = 0, a;
    cin >> n;
    for (int c = 1; c <= n; c++)
    {
        for (int b = 1; b <= c; b++)
        {
            a = b ^ c;
            if (a <= b and a + b > c)
            {
                count++;
            }
        }
    }

    cout << count;
    return 0;
}