What are you supplying to STDIN? The only reason for any different output is because of different input.

Changing my @a=(1..99); to my @a=<STDIN>; chomp @a; made no difference to my results.

For your reference, I ran... 

perl jc.pl
one two three four five six seven eight nine 10 11 12 13 14 15 16 17 1
+8 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4
+1 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 6
+4 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 8
+7 88 89 90 91 92 93 94 95 96 97 98 99
emacs -nw jc.pl
perl -e 'print $_, "\n" for (1..99)' > a
perl jc.pl &lt; a
one two three four five six seven eight nine 10 11 12 13 14 15 16 17 1
+8 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4
+1 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 6
+4 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 8
+7 88 89 90 91 92 93 94 95 96 97 98 99

[download]
Hopefully, there's a difference between my commands and yours, and this difference is obvious?

Your input file does consist of exactly 

1
2
3
etc...

[download]
right? With each number on a line of its own, and no leading or trailing spaces?

edit - Petruchio Mon Oct 1 00:14:06 UTC 2001: Replaced PRE tags with CODE tags.

In reply to Re: Change from @a=(1..99) to @a=\STDIN\ = problems by tommyw
in thread Change from @a=(1..99) to @a=\STDIN\ = problems by jerrygarciuh

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.