// Demonstrates collection of elapsed times for simple Java code.

import java.util.Scanner;
import java.util.Date;

public class timer
{

  public static void main(String[] args)
  {
    Scanner sc=new Scanner(System.in);
    System.out.print("Enter iterations\n");
    int iterations=sc.nextInt();
    System.out.print("Enter quantum\n");
    int quantum=sc.nextInt();
    Date start=new Date();
    System.out.format("Started at: %s\n",start.toString());

    for (int count=0;count<iterations;count++)
    {
      for (int i=0;i<quantum;i++)
        ;
      Date stop=new Date();
      double seconds=(stop.getTime()-start.getTime())/1000.0;
      System.out.format("%d %f\n",count,seconds);
      start=stop;
    }
    System.out.format("Stopped at: %s\n",start.toString());
  }
}