import java.io.*;
import java.util.StringTokenizer;

class lab5
{

  public static String padStr( Object inObj, int strLen )
  {
    return padStr( inObj, strLen, ' ' );
  }

  public static String padStr( Object inObj, int strLen, char padChar )
  {
    String inStr = inObj.toString();
    String toReturn = new String();

         for( int i=0 ; i<strLen-inStr.length() ; i++,toReturn+=padChar );
         toReturn+=inStr;
         return toReturn;
  }

  public static void main ( String argv[] )
  {
    FileReader fr;                      //to read from file
         BufferedReader br;     //to improve reading performance

         if( argv.length<1 )
         {
           System.out.println( "USAGE: java lab5 <filename>" );
                System.exit( 0 );
         }

         try
         {
                br = new BufferedReader( new FileReader( argv[0] ) );
                long type, addr, inst, mask;

          // read first 100 lines of trace file; 
          // address holds virtual address in unsigned int format;
          // N.B. - your program must read all 1,000,000 lines but
          //        you might want to test it on the first 100 lines
          //        or so before running it on the entire trace file!

                for( int i=0 ; i<100 ; i++ )
                {
                  StringTokenizer st = new StringTokenizer( br.readLine() );
                  try
                  {
                    type = Long.parseLong( st.nextToken(),16 );
                    addr = Long.parseLong( st.nextToken(),16 );
                    inst = Long.parseLong( st.nextToken(),16 );

                    // example of bit-wise operation in C;
                    // mask off all but the 2nd least significant hex digit,
                    // shift right by 4 bits, and print address in hex and
                    // masked shifted address in decimal
                         mask = ( addr&0x000000f0L ) >> 4;
                         System.out.println( padStr( Long.toString( addr,16 ),8 )+"        "+padStr( mask+"",2 ) );
                  }
                  catch( NumberFormatException nfe )
                  {
                    System.out.println( "Not a Hex number: "+nfe );
                  }
                }
         }
         catch( FileNotFoundException fnfe ) //from FileReader
         {
           System.out.println( "File not found:  "+fnfe );
                System.exit( 0 );
         }
         catch( EOFException eof ) //from BufferedReader
         {
           System.out.println( "End of file." );
                System.exit( 0 );
         }
         catch( Exception e )
         {
           System.out.println( "Error: "+e );
                System.exit( 0 );
         }

  }
}