I have 2 folders:

C:\Users\DK-01\Desktop\Folder A with File names : 001,002,003,004 … to 099 (99 files)
C:\Users\DK-01\Desktop\Folder B with File names : 001A, 002+1A, 100A (3 files)

I have to replace old files in Folder A by new files in Folder B; and add new files from Folder A to B.
How to make by VBA a consolidated folder with File names : 001A, 002, 002+1A, 003 … 100A?