#!/usr/local/bin/perl -w

use strict;

{
   my %hash = ();

   while (<DATA>)
   {
      my @items = split;

      $hash {pop @items} = shift @items;
   }

   print "key=$_, val=$hash{$_}\n" foreach sort keys (%hash);
}

__DATA__
1 time 02:11:05 djw
5 time 04:20:03 bert
2 time 00:01:39 chris