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#include<bits/stdc++.h>
using namespace std;
#define ll long long
inline int read(){
   int s=0,w=1;
   char ch=getchar();
   while(ch<'0'||ch>'9'){if(ch=='-')w=-1;ch=getchar();}
   while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
   return s*w;
}
int f[25000003];
signed main()
{
	int n=read();
	ll ans=0;
	n=n*n;
	for(int i=1; i*i<=n; ++i)
		for(int j=1; j<i; ++j)
			++f[(i-j)*(i+j)];
	for(int i=1; i*i*2<n; ++i)
		for(int j=i; i*i+j*j<n; ++j)
			ans+=f[i*i+j*j];
	printf("%lld\n",ans);
	return 0;
}