How to recover the for loop or seq() from a sequence result

assume generate a sequence with code
for i in 1..2 do
    append 1 to a list to represent outer loop
    for j in 1..3 do
           append 2 to list to represent inner loop
result in [1,2,2,2,1,2,2,2]
is it possible to recover for loop code and seq() function code from [1,2,2,2,1,2,2,2] ?
with fold or unfold or other method?
computing nightmare

Yes; and in doing so, your program will converge towards being an exemplar of the generalization of
Greenspun's tenth rule to any arbitrary language (rather than just 'C' or Fortran).

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    Message Edited by zskillz on 10-20-2006 11:49 AM
    Attachments:
    daq01v1MODv2.vi ‏63 KB
    daq01v1MODpic.JPG ‏116 KB

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    Hi,
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    Rgds
    Manoj Kumar

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