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

my $prefix = '';
while (<STDIN>) {
	foreach my $field (split(/\>/, $_)) {
		$field =~ s/\>/\>\n/g;
		$field =~ s/\<\/?\w+$//g;
		if ($field =~ /^\s*$/) {
			next;
		}
		if ($field =~ /^\//) {
			$prefix = $field;
			next;
		}
		print $prefix . $field . "\n";
	}
}