#include <bits/stdc++.h>

using namespace std;

int main() {
    int n;
    cin >> n;
    int ans = 0;
    for (int i = 1; i <= n; i++) {
        long long A = (long long) n * n - (long long) i * i;
        long long B = sqrt(A);
        for (int j = -2; j <= 2; j++) {
            if (B + j <= 0) {
                continue;
            }
            if (A == (B + j) * (B + j)) {
                ans++;
            }
        }
    }
    cout << ans << endl;
}