use strict;
use warnings;

my @tags = qw(
     8   9  35  49  56  50  57
    34  52  81  11  14  17  20
    31  32  37  38  39  54  55
    60  50  51  98 109 163 167
   200 207  40  44 113  56  10
);

my @sorted_tag = sort { $a <=> $b } @tags;

my $re = '\\[' . join('', map { "($_)=(.*?)" } @tags) . '\\]';

while (<DATA>) {
   chomp;

   my %hash = /$re/;

   if (not %hash) {
      warn("Line $. did not match\n");
      next;
   }

   foreach my $tag (@sorted_tags) {
      printf("%-3s => %s\n", $tag, $hash{$tag});
   }
   print("\n");
}

__DATA__
2005/11/18 00:07:18:328: FIXPump: Received data on connection {OBMSCNX} [8=FIX.4.29=040535=849=EXLINK256=DB_ORDER50=DESRISKGATEWAY57=DCN3230134=4045652=20051118-05:07:181=ATOP116=0.0000000011=DES:fud632_2005111814=15.000017=0131730438520=031=1531.0000000032=1.000037=131726063238=15.000039=254=255=NamerOfContr60=20051118-05:07:18150=2151=0.0000198=13173047161317260632109=DCN3230163=0167=FUT200=200512207=TSE40=244=1531.000000005113=06556=20051117-23:06:4910=021]