#include <iostream>
using namespace std;

int gcd(int m,int n){
	if(m < n) swap(m,n);
	while(n){
		int tmp = n;
		n = m % n;
		m = tmp;
	}
	return m;
}

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