Damian Hawker. UK. Contreras C5 Left handed.

Hi all at Stafford Guitar, 
Just like to say how much l've been enjoying  my Contreras.  Since receiving it I have not touched my other guitars! (One of which is a Benedetto).  I have set myself the goal of learning tremolo and l am getting there! 
Out of interest and for my reference do you know the brand of strings that the guitar came with?  Are there any brands you would particularly recommend for a typically 'Spanish sound'? 
Best Wishes
Damian