// Ask user for number between 0 and 1. 
//Output interval for the number: 
//between 0 and 1/3
//between 1/3 and 2/3
//between 2/3 and 1
#include <iostream>

using namespace std;

int main()
{
	double x;

	//read
	cin >> x;

	//compute
	if (x <= 1.0/3.0)
	{
		cout << "hey \n"; 
		cout << "x between 0 and 1.0/3.0 \n" ;
	}
	else if (x <= 2.0/3.0)
	{
		cout << "x between 1.0/3.0 and 2/3 \n" ;
	}
	else
	{
		cout << "x between 2/3 and 1 \n";
	}

	 



	return 0;
}