identification division.
       program-id. Program1.

       environment division.
       input-output section.
       File-Control.
       Select PayRollM assign to "E:\cobol\PayRollM.txt"
           organization is line sequential.  
           
           Select PayRollT assign to 
           "E:\cobol\PayRollT.txt"                     
           organization is line sequential.
           
           Select UPayRollM assign to "E:\cobol\UPayRollM.txt"
           organization is line sequential.  
           
           Select ControlL assign to 
           "E:\cobol\ControlL.txt"                     
           organization is line sequential.
       
       
       configuration section.
       
       data division.
       fd PayRollM.
       01 Employee.
           05 Emp-No pic 9(5).
           05 pic x(24).
           05 Ann-Sal pic 9(6).
           05 pic x(45).
           
       fd PayRollT.
        01 EmployeeT.
           05 Emp-No-T pic 9(5).
           05 pic x(24).
           05 Ann-Sal-T pic 9(6).
           05 pic x(45).
           
       fd UPayRollM.
        01 EmployeeUP.
           05 Emp-No-UP pic 9(5).
           05 pic x(24).
           05 Ann-Sal-UP pic 9(6).
           05 pic x(45).
           
       fd ControlL.
        01 EmployeeCL.
           05 pic xx.
           05 Emp-No-C pic 9(5).
           05 pic x(13).
           05 Old-Ann-Sal pic $ZZZ,ZZZ.99.
           05 pic x(13).
           05 New-Ann-Sal pic $ZZZ,ZZZ.99.
           05 pic x(8).
           05 Action pic x(16). 
           
       
       working-storage section.
       01 activeKey pic xxxxx.
       01 trans-key pic 99999 value 0.
       01 masterkey pic 99999 value 0.
       01 endofilem pic xxx value 'NO'.
       01 endofilet pic xxx value 'NO'.
      * 01 END-OF-FILES pic xxx value 'NO'.
       01 DateOfDoc.
               05 CurrentYear pic 9(4).
               05 CurrentMonth pic 99.
               05 CurrentDate pic 99.
               
       01 LINECOUNT PIC 99 VALUE 0.  
       01 updated pic xxx value 'YES'.
       01 Header.
           05 pic x(18) value spaces.
           05 pic x(34) value 'CONTROL LISTING FOR PAYROLL UPDATE'.
           05 pic x(4) value spaces.
           05 fullDate.
               10 date1 pic 99.
               10 pic x value '/'.
               10 month2 pic 99.
               10 pic x value '/'.
               10 year2 pic 9(4).
           05 pic x(3) value spaces.   
           05 pic xxxx value 'Page'.
           05 pic x value Spaces.
           05 PageNum pic 99 value 1.
           
       01 HEADER2.
           05 PIC X(12) VALUE  "EMPLOYEE NO.".
           05 pic x(8) value spaces.
           05 pic x(22) value "PREVIOUS ANNUAL SALARY".
           05 PIC XX VALUE SPACES.
           05 PIC X(17) VALUE "NEW ANNUAL SALARY".
           05 PIC XXXX VALUE SPACES.
           05 PIC X(12) VALUE "ACTION TAKEN".

       procedure division.
        100-main.
           open input PayRollT
                      PayRollM 
               output ControlL
                       UPayRollM

           PERFORM 600-PRINTHEADER   
           perform 205-ReadPayRollT
           perform 200-ReadPayRollM
          
      *    perform 310-choosekey
          
          perform 500-compare until activeKey = HIGH-values 

           
           CLOSE PayRollT
                 PayRollM
                 UPayRollM
                 ControlL
           goback.
       
       200-ReadPayRollM.
      * if not endofilem = 'YES' then
       READ PayRollM
           at end
           Display "END M"
           display emp-no
           Move 'YES' to endofilem
           not AT END
               Display "Employee: " Employee
        END-READ
      *  end-if
       .       
        
       205-ReadPayRollT.
      * if not endofilet = 'YES'then
       READ PayRollT
           At end
               Display "END T"
               display emp-no-t
               move 'YES' to endofilet
           not AT END
               Display "EmployeeT: " EmployeeT
        END-READ
      *  end-if
       .       
        
       300-Update.
      * Display "up"
           Move spaces to EmployeeUP
           Move EMp-No-T to EMp-No-Up
           Move Ann-Sal-T to Ann-Sal-UP
           write EmployeeUP
           perform 400-cont.
       
       305-copy.
       Move spaces to EmployeeUP
           Move EMp-No to EMp-No-Up
           Move Ann-Sal to Ann-Sal-UP
           write EmployeeUP.
           
      * 310-choosekey.
      * if emp-no < emp-no-t then
      *     move emp-no-t to masterkey
      *     move emp-no to trans-key
      *     move emp-no-t to activekey
      * else if emp-no > emp-no-t then  
      *     move emp-no to masterkey
      *     move emp-no-t to trans-key
      *      move emp-no to activekey
      *     end-if
      * end-if
       
       Display trans-key " : " masterkey " : " activekey
       .
       
       400-cont.
      * Display "CL"
           Move spaces to EmployeeCL
           if updated = 'YES' then
               Move "Record UPdated" to Action
               Move Ann-Sal to old-ann-sal
           else
               Move "New Record Added" to action
               move 0 to old-ann-sal
           end-if
           
           Move Emp-No-T to Emp-No-C
            
           Move ann-sal-t to new-ann-sal
      *     Display "Updated: " Updated
           write EmployeeCL
           ADD 1 TO LINECOUNT.
       
       500-compare.
       if endofilet = 'YES' and endofilem = 'YES' then
           move high-values to activekey
       else
       Display "in"
       Display "files: " endofilet " : " endofilem
           if emp-no < emp-no-t then
           Display "Fisrt"
               if endofilem = 'YES' then
               Move 'NO' to updated
               perform until endofilet = 'YES'
                   perform 300-update 
                   perform 205-readpayrollt
               end-perform
           else
               perform until emp-no >= emp-no-t
                   perform 305-copy
                   perform 200-readpayrollm
               end-perform
           end-if    
           else
           
           if emp-no > emp-no-t then
           Display "Second"
               if endofilet = 'YES' then
                   perform until endofilem = 'YES'
                       perform 305-copy
                       perform 200-readpayrollm
                   end-perform
               else
               Move 'NO' to updated
                   perform 300-update
                   perform 205-readpayrollt
               end-if
          else
           
           if emp-no = emp-no-t then
      *        if not ann-sal = ann-sal-t then
                Move 'YES' to updated
                   Display "third"
                  
                   perform 300-update
      *        else
      *        perform 305-copy
      *        end-if
               perform 205-readpayrollt
                   perform 200-readpayrollm
      *    else
           
      *    if emp-no-t > emp-no then
      *        Display "fourth"
      *        Move 'NO' to updated
      *        perform until endofilet = 'YES'
      *            perform 300-update 
      *            perform 205-readpayrollt
      *        end-perform
               
      *     else if emp-no > emp-no-t then
      *         Display "fifth"
      
      *         perform until endofilem = 'YES'
      *             perform 305-copy 
      *             perform 200-readpayrollm
      *         end-perform
           end-if

       end-if.
       
       600-printHeader.
           Move Function Current-Date to DateOfDoc
           
           Move CurrentDate to date1
           Move CurrentMonth to month2
           Move CurrentYear to year2

           if linecount >= 30 then
               Add 1 to PageNum
              Move 0 to linecount    
           end-If
       
           if linecount = 0 then
               Move Header to eMPLOYEECL
               write EMPLOYEECL
               After advancing page
               
                Move spaces to EMPLOYEECL
              write EMPLOYEECL
           end-if
           
           Move Header2 to EMPLOYEECL
           Write EMPLOYEECL

       end program Program1.