#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int INF = (1<<30)-1;
const ll LINF = (1LL<<60)-1;

#define rep(i, n) for (int i = 0; i < n; i++)
#define sz(a) (int)(a.size())

template<class T> 
bool chmax(T &a, T b) {if (a < b) {a = b;return true;}else return false;}

template<class T> 
bool chmin(T &a, T b) {if (a > b) {a = b;return true;}else return false;}

ll sqr(ll x){
	ll r=sqrt(x)-1;
	while((r+1)*(r+1)<=x)r++;
	return r;
}


//コーナーケースに気をつけろ！
int main() {
    ll n, ans = 0;   cin >> n;

    for (ll x = 1; x < n; x++) {
        ll y = sqr(n*n-x*x);
        if (y*y + x*x == n*n)   ans++;
    }
    cout << ans << endl;
    return 0;   
}

//小数点精度
//cout << fixed << std::setprecision(15) << y << endl;