sub some_sub{
    	my $item = shift;  #assign the first element of @_ to $item
	my ($string);

	if ($item == 1){   #note == not = or = =
		$string = 'one';
	}
	if ($item == 2){
		$string = 'two';
	}
	# and so on ...
	print "My number is $string."
}