Since the lists are numeric, sorted and fairly small, a simple for loop works well. (Borrowing from mr. nick's code) 
#!/usr/local/bin/perl  
 
use strict; 
 
my $max = 0;

sub readfile { 
  my $fn=shift; 
  my @ar; 
 
  open IN,"<$fn" || die "Couldn't open '$fn': $!"; 
  ## snarf the header 
  scalar <IN>; 
  ## read the rest 
  while (<IN>) { 
    chomp; 
    push @ar,$_; 
    $max = $_ if $_ > $max;
  } 
  close IN; 

  @ar; 
} 
 

## load the files into arrays 
my @a=readfile 'f1.lst'; 
my @b=readfile 'f2.lst'; 
my @c=readfile 'f3.lst'; 
 
## iterate until all arrays are empty 
for (my $i = 0; $i <= $max; $i++)
{
  next unless $a[0] == $i || $b[0] == $i ||$c[0] == $i;
 
  ## print them out (if they match) 
  printf "%5s", $a[0]==$i ? scalar shift @a : undef; 
  print " | "; 
  printf "%5s", $b[0]==$i ? scalar shift @b : undef; 
  print " | "; 
  printf "%5s", $c[0]==$i ? scalar shift @c : undef; 
 
  print "\n"; 
}

[download]
This works on the lists you supplied. Brovnik.

In reply to Re: Printing out multiple array lists and more! by Brovnik
in thread Printing out multiple array lists and more! by snafu

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.