Answer Posted / kk

data division.
working storage section.
01 opr pic a(1).
01 arrays.
02 aaa occurs n times.
03 name attribute.
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01 I pic 9(2) value 1.

procedure division.
open file
read file at end move 'n' to opt
perform para1 until opt = 'n'
perform para2 until i = 0

para1.
move filed to aaa
add i to i.
read file at end move 'n' to opt.
perform-end.

para2.
diplay aaa(I).
compute i=i-1.
perform-end.

stop run.

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