文件目录

#include <iostream>
using namespace std;
int main()
{
    int a, b, c, n;
    cin >> n;
    int ans = 0;
    for (a = 1; a <= n; a++)
    {
        for (b = a; b <= n; b++)
        {
            for (c = b; c <= n; c++)
            {
                if (a * a + b * b == c * c)
                    ans++;
            }
        }
    }
    cout << ans;
    return 0;
}