#include<bits/stdc++.h>
using namespace std;

int main(){
	int n;
	cin>>n;
	if(11<=n<=30){
		if(n>=15){
			cout<<"qingnianzu";
		}else{
			cout<<"shaonianzu";
		}
	}
	if(8<n<10){
		cout<<"ertongzu";
	}
	
	}
	
/**************************************************************
	Problem: 1670
	User: linzihang
	Language: C++
	Result: Wrong Answer
****************************************************************/