using System;
using System.Collections.Generic;
using System.Linq;
 
class Program
{
	static void Main() {
		List<string> list = new List<string>();
		string input = Console.ReadLine();
 
		while (input != "done") {
			var v = input.Split(' ');
			list.Add(v[1] + ", " + v[0]);
			input = Console.ReadLine();
		}
 
		list.OrderBy(s => s).ForEach(Console.WriteLine);
	}
}

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

Stacy Yang
Kevin Zhang
Monka Karki
Dana Chen
Dexter Turner
Muhammad Yahya
Emmeline Kaiser
Kalle Liimatta
Bob Liang
Howard Tsai
Daniel Hulgan
David Zhang
Chadambra Vin
Teashara Pugh
Ipsita Subudhi
Chandler McArthur
Adel Rahman
Joonwoo Nho
Brendan Hu
Andy Ding
Hyungie Sung
Sarah Hahn
Ikechi Akujobi
Stephenie Wang
Thomas Le
Mimi Huang
Omar Badat
Ayesha Badat
Frank Luo
Jenny Wang
Karen Liao
Hong Liu
Li Wang
Emily Koai
Lisa Kam
Sonia Azad
Jackie Xu
Leo Park
Emily Gu
Jenny Zhang
Charlie Nyugen
Thomas Yang
Katie Park
Sana Badat
Alex Wu
Damon Doucet
Yue Sha
Tim Wu
Maedeh Marzoughi
Jacob Hausmann
Willis Wang
done