#include <bits/stdc++.h>

using namespace std;
#define rep(i,n) for(long long i=0;i<n;++i)
#define rep1(i,n) for(long long i=1;i<=n;++i)
#define debug(output) if(debugFlag)cout<<#output<<"= "<<output<<endl
using lint = long long;
typedef pair<int,int> P;
const bool debugFlag=true;
const lint linf=1e18+7;
const lint inf=1e9+7;
const int MOD=1000000007;
signed main(){
  lint n;cin>>n;
  set<lint> memo;
  rep1(i,n+10)memo.insert(i*i);
  lint res=0;
  rep1(i,n+10){
    lint buf=n*n-i*i;
    if(buf<0)continue;
    if(memo.find(buf)!=memo.end())++res;
  }
  cout<<res<<"\n";
  return 0;
}