#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n>10){
		cout<<(3*5*25/120)<<endl;
	}
	else if(n>3&&n<6){
		cout<<1<<endl;
	}
}
/**************************************************************
	Problem: 1310
	User: linmiaoling
	Language: C++
	Result: Wrong Answer
****************************************************************/