#include <bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n >= 15){
		cout<<"qingnianzu";
	}else if(n >= 14){
		cout<<"shaonianzu";
	}else if(n >= 8){
		cout<<"ertongzu";
	}
}

/**************************************************************
	Problem: 1670
	User: admin
	Language: C++
	Result: Accepted
	Time:29 ms
	Memory:2072 kb
****************************************************************/