/*Used to output a text file*/

import java.lang.*;
import java.util.*;
import java.io.*;




   public class cat extends VirtualMachine {
	
	public cat()throws IOException
	{
	//	in = new BufferedReader(new InputStreamReader(System.in));	 
	}
	public cat(String filename)throws IOException
	{
		File f= new File(System.getProperty("user.dir"),filename);
	 	in = new BufferedReader(new FileReader(f));
	}
	public cat(String arg, String filename )throws  IOException
	{
		 if( !arg.equals("-n"))
		    {
			System.out.println("Invalid arguments supplied "+arg);
			throw (new IOException());
		    }
		 flag = true;

		File f= new File(System.getProperty("user.dir"),filename);
	 	in = new BufferedReader(new FileReader(f));
		
	
     }
       public void run(){
			    print();
			}
	synchronized void print()
		   {
		   	String temp;
		try {
        	 String line;
			 int i=0;
        	 while ((line = ((BufferedReader)in).readLine()) != null)
			{
				if( (int)line.charAt(0) ==24 )
 				{
				  ((BufferedWriter)out).newLine();
				  break;
				}
			     if(flag)
			     {
			     	temp = "  "+(++i)+":  ";
				     ((BufferedWriter)out).write(temp.toCharArray());
        	        ((BufferedWriter)out).write(line.toCharArray());
        	        ((BufferedWriter)out).newLine();
        	        ((BufferedWriter)out).flush();
					
           		}
                }
              }
		catch(Exception E)
		{			
		}
	}

	private boolean flag= false;
         int id;
}