#include <iostream>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n>=15&&n<=30) cout<<"qingnianzu";
	if(n>=11&&n<=14) cout<<"shaonianzu";
	if(n>=8&&n<=10) cout<<"ertongzu";
    return 0;    
}
/**************************************************************
	Problem: 1670
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:52 ms
	Memory:2072 kb
****************************************************************/