Identification Division.
       Program-Id. JEE-Exam.

       Environment Division.
       Input-Output Section.
       File-Control.
           Select Bio-File Assign To Disk
           Organization Is Line Sequential.
           Select Marks-File Assign To Disk
           Organization Is Line Sequential.
           Select Out-File Assign To Disk
           Organization Is Line Sequential.

       Data Division.
       File Section.
       FD Bio-File
           Label Records Are Standard
           Value Of File-Id Is File-Bio.
       01 Bio-Rec.
          02 RegNo   Pic 9(7).
          02 State-C Pic 99.
          02 Name    Pic a(15).
          02 Address Pic x(20).

       FD Marks-File
           Label Records Are Standard
           Value Of File-Id Is File-Marks.
       01 Marks-Rec.
          02 RegNo   Pic 9(7).
          02 Maths   Pic 999.
          02 Phy     Pic 999.
          02 Chem    Pic 999.
          02 Eng     Pic 999.

       FD Out-File
           Label Records Are Standard
           Value Of File-Id Is File-Out.
       01 Out-Rec.
          02 RegNo   Pic z(7).
          02 Filler  Pic xxx.
          02 State-C Pic z9.
          02 Filler  Pic xxx.
          02 Name    Pic a(15).
          02 Address Pic x(20).
          02 Maths   Pic zzz.
          02 Filler  Pic xxx.
          02 Phy     Pic zzz.
          02 Filler  Pic xxx.
          02 Chem    Pic zzz.
          02 Filler  Pic xxx.
          02 Eng     Pic zzz.
          02 Filler  Pic xxx.
          02 Total   Pic zzz.
          02 Filler  Pic xx.
       Working-Storage Section.
       01 H1 Pic x(80) Value "  Reg.   State   Candidate     Candidate  
      -    "            Marks Obtained    Total".
       01 H2 Pic x(80) Value " Number  Code      Name         Address
      -    "        Maths Phy. Chem. Eng. Marks".
       01 Line-Rec Pic x(80) Value All "Ü".
       01 Space-Rec Pic x(80) Value All Spaces.

       77 File-Bio   Pic x(12).
       77 File-Marks Pic x(12).
       77 File-Out   Pic x(12).
       77 EOF1       Pic x Value "N".
       77 EOF2       Pic x Value "N".
       
       Procedure Division.
       Main-Para.                          
           Perform Open-Para.
           Perform Heading-Para.
           Perform Read-Bio-Para.
           Perform Read-Marks-Para.
           Perform Process-Para Until EOF1 = "Y" Or EOF2 = "Y".
           Perform End-Para.
           Stop Run.

       Open-Para.
           Display(8, 15) "Enter the Bio-Data File Name :".
           Accept(8, 50) File-Bio With Prompt.
           Display(10, 15) "Enter the Marks File Name   :".
           Accept(10, 50) File-Marks With Prompt.
           Display(12, 15) "Enter the Ouput File Name   :".
           Accept(12, 50) File-Out With Prompt.
           Open Input Bio-File Marks-File
                Output Out-File.

       Heading-Para.
           Write Out-Rec From Line-Rec.
           Write Out-Rec From Space-Rec.
           Write Out-Rec From H1.
           Write Out-Rec From H2.
           Write Out-Rec From Space-Rec.
           Write Out-Rec From Line-Rec.
           Write Out-Rec from Space-Rec.
           Move Spaces To Out-Rec.

       Read-Bio-Para.
           Read Bio-File At End Move "Y" To EOF1.

       Read-Marks-Para.
           Read Marks-File At End Move "Y" To EOF2.

       Process-Para.
           If (RegNo Of Bio-Rec = RegNo Of Marks-Rec)
              Perform Total-Para
              Perform Move-Write-Para
              Perform Read-Bio-Para
              Perform Read-Marks-Para.

       Total-Para.
           Compute Total = Maths Of Marks-Rec + Phy Of Marks-Rec
           + Chem Of Marks-Rec + Eng Of Marks-Rec.

       Move-Write-Para.
           Move Corr Bio-Rec To Out-Rec.
           Move Corr Marks-Rec To Out-Rec.
           Write Out-Rec.

  
       End-Para.
           Write Out-Rec From Space-Rec.
           Write Out-Rec From Line-Rec.
           Close Bio-File Marks-File Out-File.