#include "bits/stdc++.h"
using namespace std;


int gcd(int a, int b){
	if (b == 0) return a;
	return gcd(b, a%b);
}

int main() {
	int L;
	cin >> L;
	L /= 4;
	int ans = 0;
	for (int m = 0; m * m <= L; m++)
	{
		for (int n = 1; n < m; n++)
		{
			if ((m - n) % 2 == 0) continue;
			if (gcd(m, n) != 1) continue;
			int a = m * m - n * n;
			int b = 2 * m * n;
			int c = m * m + n * n;
			if (a + b + c <= L) ans++;
		}
	}
	cout << ans << endl;
}