Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\x>cd desktop

C:\Users\x\Desktop>3.pl


 Please ENTER Database Name (.txt): rc.txt

 rc.txt Database:

A:50:r1
B:45:r2
C:40:r3


 WELCOME to Students' Database:

 Enter the Registration Number to view the details: r1


 The details of the Regn No. r1 are:

 Student Name:  A
 Age (yr):    50
 Regd no:     r1

 Detailed Information for Registration No. r1:

 1        # WRONG RESULT

C:\Users\x\Desktop>