#!/usr/bin/perl

use strict;
use warnings;

my $line = "perlmonk is a gREat site. i loVE it.\n";
print $line;
$line = ucfirst lc $line;
print $line;
$line =~ s/(\. [a-z])/uc($1)/eg;
print $line;

##</code><code>##

perlmonk is a gREat site. i loVE it.
Perlmonk is a great site. i love it.
Perlmonk is a great site. I love it.