use strict;
use warnings;

{
	my $str = "0123456789";
	for (1 .. 5) {
		chop $str;
	}
	print "[$str]";
}

{
	my $str = "0123456789";
	for (1 .. 5) {
		chomp $str;
	}
	print "[$str]";
}

{
	my $str = "0123456789\n";
	for (1 .. 5) {
		chop $str;
	}
	print "[$str]";
}

{
	my $str = "0123456789\n";
	for (1 .. 5) {
		chomp $str;
	}
	print "[$str]";
}

##</code><code>##

[01234][0123456789][012345][0123456789]