#include <bits/stdc++.h>
using namespace std;
using G=vector<vector<int>>;
typedef long long ll;
#define rep(i,l,r) for(int i=(l);i<(r);++i)

int main(){
	ll n; cin>>n;
	ll m=n*n;
	int cnt=0;
	for(ll x=1; x<n; x++){
		ll y=m-x*x;
		ll z=sqrt(y);
		if(y==z*z) cnt++;
	}
	cout<<cnt<<endl;
}