import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		if(n >= 15 && n <= 30){
			System.out.println("qingnianzu");
		}else if(n >=11 && n <= 14){
			System.out.println("shaonianzu");
		}else if(n >=8 && n <= 10){
			System.out.println("ertongzu");
		}
		sc.close();
	}

}
/**************************************************************
	Problem: 1670
	User: admin
	Language: Java
	Result: Accepted
	Time:1362 ms
	Memory:40352 kb
****************************************************************/