#include<iostream>
#include<map>
using namespace std;

int main() {
    int n;
    cin >> n;
    long long res = 0;
    for (int x = 1; x < n; x++) {
        long long y2 = (long long)n * n - x * x;
        map<int, int> y;
        for (int i = 2; i < n; i++) {
            while(y2 % i == 0) {
                y2 /= i;
                y[i]++;
            }
            if (y2 == 1) break;
            if (i == n - 1) y[y2]++;
        }
        bool b = true;
        for (auto p : y) {
            if (p.second % 2 == 1) b = false;
        }
        if (b) res++;
    }
    cout  << res << endl;
    return 0;
}