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

ll N, ans = 0;

int main() {
  cin >> N;
  for (ll x = 1; x * x <= N * N; x++) {
    ll y2 = N * N - x * x;
    double yd = sqrtl(y2);
    ll y = floor(yd);
    if (y > 0 && y == yd) {
      ans++;
    }
  }
  cout << ans << endl;
  return 0;
}