how to get log for X last revisions

Hello dear all,
is it possible to get log of X last revisions without query the last
revision number and
without calculate -X for this number?
I mean something like: svn log -r HEAD:-100

Obvisoully, it is possible to have a first lines with "more" command but for
13000 revisions that we have in our repo, it does not look the super
efficient way...

Thanks,

-- 
Best Regards,
Moisei
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