Answer Posted / nk

01 MY-STRING PIC X(9) VALUE 'ABCDEFGHI'.
01 FILLER REDEFINES MY-STRING.
05 CHAR OCCURS 9 TIMES. (could use INDEXED BY here)
01 OUT-STRING PIC X(9).
01 IDX-IN PIC 9.
01 IDX-OUT PIC 9.
MOVE 9 TO IDX-IN.
PERFORM MOVE-A-CHAR (could also do an inline PERFORM)
VARYING IDX-OUT FROM 1 BY 1
UNTIL IDX-OUT > 9.
MOVE-A-CHAR.
MOVE CHAR(IDX-IN) TO OUT-STRING(IDX-OUT).
SUBTRACT 1 FROM IDX-IN.
MOVE-A-CHAR-EXIT.
EXIT.

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