I have a following directory structure committed in SVN with multiple revisions:
Folder_A
    \Sub_Folder_B
        \File1
        \File2
I want to modify above sturucture to following structure in SVN:
Folder_A
    \Sub_Folder_C
        \Sub_Folder_D
            \Sub_Folder_E
                \File1
                \File2  
I do not want to loose the SVN revision history of Folder_A, File1 and File2.
Please recommend how can I do that?
Should I do it in working copy or svn repository?
Thanks!
EDIT: As I explained in comment, I am not looking for just renaming a folder. I want to introduce new sub folders while maintaining revision history.