Query parameter need to remove first four characters in ssrs using ssas

Hi,

In SSRS, I have a query parameter which is loaded from ssas cube. It is showing location code and location name. But one of my reports, I need to show only location name into parameter. Location code is fixed character 8. So How I can remove location code and load location name into query parameter in SSRS invironment without changing SSAS cube.

Your help would be apparciated.

Thanks in advance.

Ramesh