I've accepted a challenge

I have the following set of filenames (example):
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0123456ABCDEFGH.jpg
1234567ABCDEFGH.jpg
2345678ABCDEFGH.jpg
3456789BCDEFGHI.jpg
4567890BCDEFGHI.jpg
5678901BCDEFGHI.jgp
If the multirename tool could create directories, this would be very easy:
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[N8-]\[N1-7]\[N].[E]
Thanks in advance.