macro compare 2 ranges but insert row in one range..

Hi excel forum user's!

I need Help, I have this macro:

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I have 2 ranges to compare:
Range 1: ("A3:C")
Range 2: ("H3:J")

I need you when it detects a difference in those ranges, insert rows (only RANGE (H3:M) until it detects the same value and continue ..
No problem if create a new workbook or can be in the same worksheet..

attach the worksheet and include explication..

Thanks a lot!
Best Regards!!