Answer / raghunath

refer to www.mainframegurukul.com for the answer

Answer / Sarika Srivastava

COBOL does not have built-in functions called 'evaluate', 'unstring', or 'occurs'. However, you can achieve similar functionality using other COBOL constructs. Here's a simple example of using IF, PERFORM, and STRING:nn```COBOL
IDENTIFICATION DIVISION.
PROGRAM-ID. EXAMPLE-PROGRAM.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-NAME PIC X(50) VALUE ''.
01 WS-INPUT PIC X(80).
PROCEDURE DIVISION.
DISPLAY 'Enter a string: '.
ACCEPT WS-INPUT.
MOVE WS-INPUT TO WS-NAME.
IF LENGTH(WS-NAME) > 10 THEN
DISPLAY 'The provided string has more than 10 characters.'
GO TO PROGRAM-END.
ELSE
DISPLAY 'The provided string is less than or equal to 10 characters.'
END-IF.
PERFORM VARYING WS-INDEX FROM 1 BY 1 UNTIL WS-INDEX > LENGTH(WS-NAME)
MOVE SUBSTRING(WS-NAME FROM WS-INDEX BY 1) TO WS-INPUT.
IF WS-INPUT = 'A' THEN
DISPLAY 'The string contains the letter A.'
END-IF.
END-PERFORM.
PROGRAM-END.
STOP RUN.
```

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