Find and then Add

I have a bunch of files where the characters "GIO#" and "SZ#" are in the filenames. How can i grab these sections and add them to the end of the filename.

Example:
Test GIO234 hi.mp4 to Test hi GIO234.mp4
SZ123 test file.mp4 to test file SZ123.mp4

Try...

Replace: (GIO[^ ]*|SZ[^ ]*) ?(.*)
with: \2 \1
Use regular expressions