#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

inline bool issqr(ll x) {
  ll y = sqrt(x);
  for (ll i = y - 10; i <= y + 10; i++) {
    if (i * i == x) return true;
  }
  return false;
}

int main() {
  ll n;
  cin >> n;
  int ans = 0;
  for (ll x = 1; x <= n; x++) {
    ll y2 = n * n - x * x;
    if (y2 <= 0) continue;
    Debug(n, x, y2);
    if (issqr(y2)) ans++;
  }
  cout << ans << endl;
  return 0;
}