#include<iostream>
#include<cmath>
using namespace std;
int main() {
    long n;
    cin >> n;
  	long ans = 0;
  	for (long i = 1; i < 500000; i++) {
  	    long x = n*n-i*i;
  	    if (x > 0 && floor(sqrt(x))*floor(sqrt(x)) == x) {
  	        ans++;
  	    }
  	}
    cout << ans << endl;
    return 0;
}