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#include <bits/stdc++.h>
#define pb push_back
#define f first
#define s second
#define ll long long
#define dbg(x) cerr << #x << ": " << x << "\n"
#define mp make_pair

using namespace std;

map<int, int> M;

int main()
{
    cin.tie(0)->sync_with_stdio(0);

    int n;
    cin >> n;

    for (int i = 1; i <= n; i++)
    {
        for (int j = i; j <= n; j++)
        {
            M[i * i + j * j]++;
        }
    }

    int res = 0;

    for (int i = 2; i <= n; i++)
    {
        for (int j = 1; j < i; j++)
        {
            res += M[i * i - j * j];
        }
    }

    cout << res;

    return 0;
}