#include <bits/stdc++.h>

using namespace std;
#define rep(i, n, o) for(int i = o;i < (n);i++)
#define ou(x) cout << x << endl
#define ll long long
#define re return 0

int main(){
    int n;
    int cnt = 0;
    cin >> n;
    rep(i, n, 1){
        ll y = sqrt(n * n - i * i);
        if((y * y + i * i) == (n * n)){
            cnt++;
        }
    }
    ou(cnt);
    re;
}