#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint = modint1000000007;
//using mint = modint998244353;
//std::chrono::time_point<std::chrono::steady_clock> start;
template <typename T> bool chmax(T &u, const T z) { if (u < z) {u = z; return true;} else return false; }
template <typename T> bool chmin(T &u, const T z) { if (u > z) {u = z; return true;} else return false; }
#define ll long long
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)
typedef pair<ll, int> P;
ll gcd(ll x, ll y) { return y ? gcd(y, x % y) : x; }
ll lcm(ll a, ll b){return a * b / gcd(a, b);}
template<class T, class U>
//contain(string s,string v) sにvが含まれるかを判定
bool contain(const std::basic_string<T>& s, const U& v) {
   return s.find(v) != std::basic_string<T>::npos;
}
std::chrono::time_point<std::chrono::steady_clock> start;
vector<pair<ll,int>>factorize(ll n){
    vector<pair<ll,int>>res;
    for(ll i=2;i*i<=n;++i){
        if(n%i)continue;
        res.emplace_back(i,0);
        while(n%i==0){
            n/=i;
            res.back().second++;
        }
    }
    if(n!=1)res.emplace_back(n,1);
    return res;
}
int main(){
  ll n;
  cin>>n;
  int cnt=0;
  for(int x=1;x*x<=n*n;x++){
    ll y=n*n-x*x;
    auto f=factorize(y);
    bool hantei=true;
    rep(i,f.size()){
      if(f[i].second%2==1){
        hantei=false;
        break;
      }
    }
    if(hantei)cnt++;
  }
  cout<<cnt<<endl;
  return 0;
}