#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001
	
int main(){
	
	long long n;
	cin>>n;
	
	n *= n;
	
	vector<long long> L;
	for(long long i=1;i<=300000;i++){
		L.push_back(i*i);
	}
	int ans = 0;
	for(long long i=1;i<=300000;i++){
		long long t = n-i*i;
		if(binary_search(L.begin(),L.end(),t))ans++;
	}
	
	cout<<ans<<endl;
	
	return 0;
}