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

int main()
{
	long long N;
	cin >> N;

	long long N2 = N * N;
	long long ans = 0;
	for( long long x = 1; x < N; x++ ) {
		long long y2 = N2 - x * x;
		double y = sqrt( y2 );
		if( floor( y ) == y ) ans++;
	}

	cout << ans << endl;
}