Show Multiple Box Object Dimentions

Hi
I'm very thankful for someone who gives me a script to have length, width and height of multi selection of boxes or a group with their name in Maxscript.Because I don't know scripting and I have huge amount of these boxes which is very hard to select and write their seizes.
e.g object name = L:xxx.x W:xxx.x H:xxx.x
thank you in advance.