import java.io.PrintStream;
import java.util.List;
import java.util.ArrayList;
import java.util.Random;
import java.util.Collections;
import java.util.Calendar;

public class Schedule
{
    public static void main(String[] args)
    {
	PrintStream output = System.out;

	List<String> groups = new ArrayList<String>();
	groups.add("Yawen Xu (and Xiaoling Wang)");
	groups.add("Bashir Raees");
	groups.add("Balwinder Dhoofar");
	groups.add("Jaiwei Li and Tsui-yan Chau");
	groups.add("Qingrong Tang (and Xiangqian Cui)");
	groups.add("Dan Shen and Kejun Xu");
	groups.add("David Kim");
	
	Random random = new Random(System.currentTimeMillis());
	final int MAX_NUMBER = 100;
	final int NUMBER = 1 + random.nextInt(MAX_NUMBER);
	for (int i = 0; i < NUMBER; i++)
	{
	    Collections.shuffle(groups);
	}

	Calendar calendar = Calendar.getInstance();
	calendar.set(Calendar.HOUR, 14);
	calendar.set(Calendar.MINUTE, 30);

	for (String group : groups)
	{
	    output.printf("%tR", calendar);
	    calendar.add(Calendar.MINUTE, 15); // length of presentation
            output.print(" - ");
	    output.printf("%tR", calendar);
	    output.println("  " + group);
	    calendar.add(Calendar.MINUTE, 5); // time for set up
	}
    }
}