#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(8<=n&&n<=10) cout<<"ertongzu";
	if(11<=n&&n<=14) cout<<"shaonianzu";
	if(15<=n&&n<=30) cout<<"qingnianzu"; 
	return 0;
}
/**************************************************************
	Problem: 1670
	User: panjinyan
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2072 kb
****************************************************************/