#!/usr/bin/perl -w
use strict;

my $COUNT_TO = 1e9;

my @TIME_UNITS = (
                  [ year => 365.25 * 24 * 60 * 60 ],
                  [ week => 7 * 24 * 60 * 60 ],
                  [ day => 24 * 60 * 60 ],
                  [ hour => 60 * 60 ],
                  [ minute => 60 ],
                  [ second => 1 ],
                 );

print "Content-type: text/plain\n\n";

my $delta = $COUNT_TO - time;
$delta = 0 if $delta < 0;
my @items = map {
  my ($unit, $secs) = @$_;
  my $count = int($delta/$secs);
  $delta -= $count * $secs;
  $count ? $count == 1 ? "1 $unit" : "$count ${unit}s" : ();
} @TIME_UNITS;
## splice @items, 3 if @items > 3;
@items = q(not very long) unless @items;
my $relative =
  @items > 2 ? join(", ", @items[0..$#items-1], "and $items[-1]") :
  @items > 1 ? "$items[0] and $items[1]" :
  $items[0];

print $relative;