[balinor]

try this:

{if $main eq "catalog" and $current_category.category eq ""}Your title here{else}
{if $config.SEO.page_title_format eq "A"}
{section name=position loop=$location}
{$location[position].0|escape}
{if not %position.last%} - {/if}
{/section}
{else}
{section name=position loop=$location step=-1}
{$location[position].0|escape}
{if not %position.last%} - {/if}
{/section}
{/if}
{/if}