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{foreach from=$ar_navigation item=Itemn}
{if $Itemn.name!=''}
{assign var="counter2" value="`$counter2+1`"}
{/if}
{/foreach}
{foreach from=$ar_navigation item=Item}
{assign var="counter" value="`$counter+1`"}
{if $Item.name!=''}
{if $counter<$counter2}
{$Item.name|mb_truncate:70}
{else}
{$Item.name|mb_truncate:70}
{/if}
{if $counter!=$counter2}
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{/if}
{/if}
{/foreach}