#include <bits/stdc++.h>
using namespace std;
int main(){
	int i,o,p,sum=0;
	cin>>i;
	i*=10;
	for(int y=8;y<i;y+=8){
		for(int t=2;t<i-y;t+=2){
			if(y+t>=i||y/8+t/2+i-y-t<=30)continue;
			sum++;
		}
	}
	cout<<sum;
	return 0;
}

/**************************************************************
	Problem: 1024
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/