#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a>=11&&a<=14){
		cout<<"shaonianzu";
	}else if(a>=8&&a<=10){
		cout<<"ertongzu";
	}else if(a>=15&&a<=30){
		cout<<"qingnianzu";
	}
}
/**************************************************************
	Problem: 1670
	User: toughuatao1
	Language: C++
	Result: Accepted
	Time:28 ms
	Memory:2072 kb
****************************************************************/