#include <iostream>
#include <stdio.h>

using namespace std;

bool isPrime(long long int n)
{
 if (n==1) return false;
    for (int i = 2; i*i<=n; ++i) {
        if (n%i==0) return false;
   }
  return true;
}

bool isTrojka(long long int m)
{
	
	
	if (m < 3)
	{
		return false;
	}
	while(m != 1)
	{
		if (m % 3 != 0)
		{
	    	return false;
		}
		m = m / 3;
	}
	return true;
}



bool is5(long long int m)
{
	
	
	if (m < 5)
	{
		return false;
	}
	while(m != 1)
	{
		if (m % 5 != 0)
		{
	    	return false;
		}
		m = m / 5;
	}
	return true;
}



long long int isDvojka(long long int x)
{
    return (x <= 0) ? 0 : (x & (x-1)) == 0;    
}



   int main()
   {
	   freopen("input.txt","r",stdin);
	   freopen("output.txt","w",stdout);
	   long long int a;
	   cin>>a;
	  
	  
	   if(isPrime(a)) cout<<"elementary";else
		   if(is5(a)) cout<<"elementary";else
			   if (isDvojka(a)==1) cout<<"elementary";else
				   if(isTrojka(a)) cout<<"elementary";else cout<<"one pipe";


   }