#include <bits/stdc++.h>
using namespace std;
#define repd(i,a,b) for (ll i=(a);i<(b);i++)
#define rep(i,n) repd(i,0,n)
#define all(x) (x).begin(),(x).end()
#define SIZE(x) ll(x.size())
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
typedef long long ll;
const long long INF = 1LL << 60;
const long long MOD = 1000000007;
typedef pair<int, int> P;
int main()
{
    ll N;
    cin >> N;
    N *= N;

    ll ans = 0;
    
    for (ll i = 1; i * i < N; i++) {
        ll x = i * i;
        ll y = N - x;
        y = ceil(sqrt(y));
        y *= y;
        if (x + y == N) ans++;
    }

    cout << ans << endl;
    return 0;
}