Merge similar cells in column and adjacent columns

Hello everyone
I have a code that merge similar cells in column

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I need to merge two more adjacent columns but depending on the similar values in first column
The Columns A / B / C are the main data and I have put the expected output (desired results) in Columns F / G / H (Just for clarify the issue)
But I need the working code to deal with columns A / B / C

Hope it is clear
Thanks advanced for help

Try this:

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Really awesome and wonderful Mr. Milz
Exactly as I need
Thank you very much for great help
Regards

You are very welcome