#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int l;
  cin>>l;
  using T = tuple<Int, Int, Int>;
  set<T> ans;
  for(Int m=2;m*m<=l;m++){
    for(Int n=2-(~m&1);n<m;n+=2){
      if(__gcd(m,n)!=1) continue;
      Int a=m*m-n*n;
      Int b=2*m*n;
      Int c=m*m+n*n;
      if(4*(a+b+c)<=l)
        ans.emplace(min(a,b),max(a,b),c);
    }
  }
  cout<<ans.size()<<endl;
  return 0;
}