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

int main() {
    int n;
    cin >> n;

    int r = 0;
    ll t = n;
    t *= t;
    for (int i = 1; i < n; i++) {
        ll x = i;
        ll y = round(sqrt(t - x * x));
        r += x * x + y * y == t;
    }
    cout << r << endl;

    return 0;
}