$)C<span style=" font-size:10pt;font-family:sans-serif">Hmmh,</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I wouldn't like
to introduce too much change in the draft at the current stage. </span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">In general, I
think:</span>
<br><span style=" font-size:10pt;font-family:sans-serif">1) We could have
checksum ID for private / experimental use but its use should be discouraged.</span>
<br><span style=" font-size:10pt;font-family:sans-serif">2) Implementations
may or may not support private / experimental checksums (or be configurable).
This could go to the MIB but does not have to (as for the other checksum
ID). It's an implementation matter.</span>
<br><span style=" font-size:10pt;font-family:sans-serif">3) If an implementation
chooses to support private / experimental checksums, it will try to apply
a checksum which may either succeed or fail. Which exact checksum to apply
is again an implementation matter, could be per source or generic or guessing
based on some other information ...</span>
<br><span style=" font-size:10pt;font-family:sans-serif">4) If an implementation
chooses not to support private / experimental checksums, it will raise
the Unsupported Checksum Type fault.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">For the interoperability
testing, I am not sure how much of this has to be covered. As the private
/ experimental checksum is, well 'private/experimental', I don't think
we have to test something for the standard interoperability. Dealing with
unsupported checksums seems also more a 'local' entity issue and not so
much required for interoperability testing.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Regards,</span>
<br><span style=" font-size:10pt;font-family:sans-serif">Felix</span>
<br>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
       </span><span style=" font-size:9pt;font-family:sans-serif"><Jeremy.Mayer@dlr.de></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
       </span><span style=" font-size:9pt;font-family:sans-serif"><chkoo@kari.re.kr>,
<Felix.Flentge@esa.int>, <sis-cfdpv1@mailman.ccsds.org>, <sis-cfdpv1-bounces@mailman.ccsds.org></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
       </span><span style=" font-size:9pt;font-family:sans-serif">11/12/2019
08:49</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
       </span><span style=" font-size:9pt;font-family:sans-serif">Re:
[SIS-CFDPV1] revised draft specification</span>
<br>
<hr noshade>
<br>
<br>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Hi
Cheol,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Understood,
and to respond to both of your emails at once: I think that the "private/experimental"
checksum ID will cover this scenario, without requiring the allocation
of the limited range of checksum ID's which are supported by CFDP.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">To
use your example, if the sending entity uses a private checksum algorithm,
then they would put checksum ID <b>private_use</b> (whichever ID that may
be) into the metadata PDU. Upon receiving that checksum, the receiving
entity <b>MUST </b>search the MIB in order to determine which checksum
is used for that source CFDP entity ID, and process accordingly. If it
doesn't find a checksum, then the "Unsupported Checksum Type"
error is raised. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">This
would still increase the complexity of the MIB and checksum processing
pipeline, but we can outline that the private_use checksum ID MUST search
the MIB to determine the actual checksum algorithm, and shall fail if  more
or less than 1 checksum matches for a given CFDP source entity ID. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Thanks,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Jeremy</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri"><br>
</span></p>
<br>
<br>
<hr>
<br><span style=" font-size:11pt;font-family:Calibri"><b>From:</b> 18C6H8
<chkoo@kari.re.kr><b><br>
Sent:</b> Wednesday, December 11, 2019 8:46:23 AM<b><br>
To:</b> Mayer, Jeremy; Felix.Flentge@esa.int; sis-cfdpv1@mailman.ccsds.org;
sis-cfdpv1-bounces@mailman.ccsds.org<b><br>
Subject:</b> RE: [SIS-CFDPV1] revised draft specification</span><span style=" font-size:12pt;font-family:sans-serif">
</span>
<br><span style=" font-size:12pt;font-family:sans-serif"> </span>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">Hi,
Felix.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">If
we choose one ID as 'Reserved for Private and/or Experimental Use, that
means a CFDP implementation can support the ID; therefore when the ID is
applied to a filestore request, a receiving entity (who can handle the
ID) will have no problem to process the request. No fault condition can
be issued.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">Jeremy!/s
idea can handle the situation. But a !.prior coordination between agencies!/
should be made before entering a real testing in order to know which one
is an implemented checksum algorithm (because the sending entity have to
process a file delivery request), or a fake algorithm (non-support algorithm).
I think that could be not what we want in this context.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">Cheol</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"><b>From:</b>
Jeremy.Mayer@dlr.de <Jeremy.Mayer@dlr.de> <b><br>
Sent:</b> Wednesday, December 11, 2019 4:17 PM<b><br>
To:</b> Felix.Flentge@esa.int; </span><span style=" font-size:11pt;font-family:sans-serif">18C6H8</span><span style=" font-size:11pt;font-family:Calibri">
<chkoo@kari.re.kr>; sis-cfdpv1@mailman.ccsds.org; sis-cfdpv1-bounces@mailman.ccsds.org<b><br>
Subject:</b> Re: [SIS-CFDPV1] revised draft specification</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Felix,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">I
agree. Checksum ID's 0-15 are reserved for CFDP,  so that checksum
can be added to the blue book without altering the registry. However, it
may make sense to allocate two checksum ID's for general (non-CFDP specific)
use: one for private and one for experimental.  </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">If
we did that, checksums 0-3 would be "real" checksums, 4-12 would
be reserved for CFDP, 13 & 14 would be private/experimental, and 15
would NULL.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Thanks,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Jeremy</span></p>
<div align=center>
<hr></div>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"><b>From:</b>
</span><a href=mailto:Felix.Flentge@esa.int><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>Felix.Flentge@esa.int</u></span></a><span style=" font-size:11pt;font-family:Calibri">
<</span><a href=mailto:Felix.Flentge@esa.int><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>Felix.Flentge@esa.int</u></span></a><span style=" font-size:11pt;font-family:Calibri">><b><br>
Sent:</b> Wednesday, December 11, 2019 8:10:41 AM<b><br>
To:</b> </span><a href=mailto:chkoo@kari.re.kr><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>chkoo@kari.re.kr</u></span></a><span style=" font-size:11pt;font-family:Calibri">;
</span><a href="mailto:sis-cfdpv1@mailman.ccsds.org"><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>sis-cfdpv1@mailman.ccsds.org</u></span></a><span style=" font-size:11pt;font-family:Calibri">;
SIS-CFDPV1; Mayer, Jeremy<b><br>
Subject:</b> Re: [SIS-CFDPV1] revised draft specification</span><span style=" font-size:12pt;font-family:sans-serif">
</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">Dear
All,</span><span style=" font-size:12pt;font-family:sans-serif"> <br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
I would support that idea. We could be even more general (also to avoid
changing the current draft standard wrt to the MIB) to just have one ID
specified as 'Reserved for Private and/or Experimental Use'.</span><span style=" font-size:12pt;font-family:sans-serif">
<br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
Regards,</span><span style=" font-size:12pt;font-family:sans-serif"> </span><span style=" font-size:10pt;font-family:Arial"><br>
Felix</span><span style=" font-size:12pt;font-family:sans-serif"> <br>
<br>
<br>
<br>
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
From:        </span><span style=" font-size:9pt;font-family:Arial"><</span><a href=mailto:Jeremy.Mayer@dlr.de><span style=" font-size:9pt;color:blue;font-family:Arial"><u>Jeremy.Mayer@dlr.de</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt;font-family:sans-serif">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
To:        </span><span style=" font-size:9pt;font-family:Arial"><</span><a href=mailto:chkoo@kari.re.kr><span style=" font-size:9pt;color:blue;font-family:Arial"><u>chkoo@kari.re.kr</u></span></a><span style=" font-size:9pt;font-family:Arial">>,
<</span><a href="mailto:sis-cfdpv1@mailman.ccsds.org"><span style=" font-size:9pt;color:blue;font-family:Arial"><u>sis-cfdpv1@mailman.ccsds.org</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt;font-family:sans-serif">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Date:        </span><span style=" font-size:9pt;font-family:Arial">11/12/2019
08:01</span><span style=" font-size:12pt;font-family:sans-serif"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Subject:        </span><span style=" font-size:9pt;font-family:Arial">Re:
[SIS-CFDPV1] revised draft specification</span><span style=" font-size:12pt;font-family:sans-serif">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Sent by:        </span><span style=" font-size:9pt;font-family:Arial">"SIS-CFDPV1"
<</span><a href="mailto:sis-cfdpv1-bounces@mailman.ccsds.org"><span style=" font-size:9pt;color:blue;font-family:Arial"><u>sis-cfdpv1-bounces@mailman.ccsds.org</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt;font-family:sans-serif">
</span></p>
<div align=center>
<hr noshade></div>
<p style="margin-top:0px;margin-Bottom:240px"><span style=" font-size:12pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Hi
Cheol,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">I
can answer your questions about the Checksum registry: First, I'm not sure
why the checksum ID's are non-sequential, since I'm not sure what the SANA
website is sorting by, but if you click the "ChecksumID" column
header, it should sort correctly. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">I
would suggest that, in the scenario which you outlined, the MIB containing
the supported checksums for a receiving entity should be updated via TC
and/or the desired checksum should be sent during a filestore request,
but that's a more impactful change. I am adverse to a one-to-one allocation
of checksum ID's to agencies, since it ultimately negates the purpose of
the checksum ID and complicates mission operations and cross support: a
single receiving CFDP entity at a ground station can (and likely will)
support multiple missions, some of which may be performed from different
agencies, each of which may have their own checksumming capabilities and
requirements. If a single checksum ID is allocated to each agency, the
receiving entity will be unable to determine the "real" checksum
in use, unless that data is conveyed via some out-of-band mechanism. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Additionally,
different files from a single mission may require different checksums,
either due to bandwidth constraints, mission phase, and/or avionics capabilities,
meaning that the receiving entity will have to be aware of the mapping
between entities, sessions, and checksum configurations. This is further
complicated by the rise of file-based operations and advanced FDIR systems:
it may be possible for the sending entity to change checksum modes in the
event of a failure, in order in order to reduce power utilization and/or
computational complexity. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">What
would be possible is to allocate a single checksum ID to be "MIB defined".
If that ID is in use, then it's up to the sender/receiver to determine
the checksum out-of-band, but I think that would require some changes to
the blue book.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Thanks,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Jeremy
 </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:sans-serif"> </span></p>
<div align=center>
<hr></div>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"><b><br>
From:</b> SIS-CFDPV1 <</span><a href="mailto:sis-cfdpv1-bounces@mailman.ccsds.org"><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>sis-cfdpv1-bounces@mailman.ccsds.org</u></span></a><span style=" font-size:11pt;font-family:Calibri">>
on behalf of </span><span style=" font-size:11pt;font-family:sans-serif">18C6H8</span><span style=" font-size:11pt;font-family:Calibri">
<</span><a href=mailto:chkoo@kari.re.kr><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>chkoo@kari.re.kr</u></span></a><span style=" font-size:11pt;font-family:Calibri">><b><br>
Sent:</b> Wednesday, December 11, 2019 1:48:18 AM<b><br>
To:</b> </span><a href="mailto:sis-cfdpv1@mailman.ccsds.org"><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>sis-cfdpv1@mailman.ccsds.org</u></span></a><span style=" font-size:11pt;font-family:Calibri"><b><br>
Subject:</b> Re: [SIS-CFDPV1] revised draft specification</span><span style=" font-size:12pt;font-family:Arial">
<br>
 </span><span style=" font-size:12pt;font-family:sans-serif"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">Hi,
Scott.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">I
like your idea. I am currently working on the modification of CFDP software
from my side, and I love to perform the supplementary interoperability
test when the updated ION and interoperability test plan are available.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">I
don!/t see many testing items are required for this supplementary testing.
However as I sent it earlier to you there is a tricky issue with regard
to handling condition code of !.Unsupported checksum type(1011)!/. In
order to make that situation, the !.Unsupported checksum type!/ is generated,
happen, a CFDP (sending) entity should be able to generate a checksum field
by a checksum algorithm that the other CFDP (receiving) entity does not
support. As there are not much choices in selection of checksum algorithms,
it can be tricky because one CFDP entity may have to implement an unnecessary
checksum algorithm that is even not consistent with CFDP Checksum Identifiers
in SANA registry (</span><a href=https://sanaregistry.org/r/checksum_identifiers><span style=" font-size:10pt;color:#0082bf;font-family:Arial"><u>https://sanaregistry.org/r/checksum_identifiers</u></span></a><span style=" font-size:10pt;font-family:Arial">).</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial"> 
 * short question : why are the number of the checksum ID in the SANA
not consistently sequential? E.g., 4,5,</span><span style=" font-size:10pt;color:red;font-family:Arial">(6?)</span><span style=" font-size:10pt;font-family:Arial">,7,</span><span style=" font-size:10pt;color:red;font-family:Arial">(8?)</span><span style=" font-size:10pt;font-family:Arial">,9,10,11,12,13,14,</span><span style=" font-size:10pt;color:red;font-family:Arial">6,8</span><span style=" font-size:10pt;font-family:Arial">,15.</span></p>
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<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">After
thinking about this issue, I like to propose an idea. Why don!/t we allocate
a Checksum ID to each space agencies, e.g., KARI reserve 5 as a checksum
ID for potential use. Then KARI can freely choose the checksum algorithm
for checksum ID 5, e.g., just a copy of modular, CRC32 or whatever or in-house
algorithm for sure. When KARI put the 5 at the checksum type field in Metadata
PDU, with all the interoperability testing with space agencies, the !.Unsupported
checksum type!/ condition code should be designated at the FIN PDU from
a receiving CFDP entity since all space agencies except KARI doesn!/t
have any reference for the checksum ID of 5. How do you think?</span></p>
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<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">Cheol</span></p>
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<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"><b>From:</b>
SIS-CFDPV1 <</span><a href="mailto:sis-cfdpv1-bounces@mailman.ccsds.org"><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>sis-cfdpv1-bounces@mailman.ccsds.org</u></span></a><span style=" font-size:11pt;font-family:Calibri">>
<b>On Behalf Of </b>Burleigh, Scott C (US 312B) via SIS-CFDPV1<b><br>
Sent:</b> Wednesday, December 11, 2019 1:21 AM<b><br>
To:</b> </span><a href="mailto:sis-cfdpv1@mailman.ccsds.org"><span style=" font-size:11pt;color:blue;font-family:Calibri"><u>sis-cfdpv1@mailman.ccsds.org</u></span></a><span style=" font-size:11pt;font-family:Calibri"><b><br>
Subject:</b> [SIS-CFDPV1] revised draft specification</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Hi,
all.  Following some additional discussion of the RID dispositions
proposed in the Darmstadt meeting, we now have got a final (I hope) draft
specification posted to CWE at </span><a href="https://cwe.ccsds.org/sis/docs/SIS-CFDPV1/Draft%20Documents/727x0b5%20--%20Specification%20--%20Blue%20Book/727x0p42_working%204.doc?Web=1"><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>https://cwe.ccsds.org/sis/docs/SIS-CFDPV1/Draft%20Documents/727x0b5%20--%20Specification%20--%20Blue%20Book/727x0p42_working%204.doc?Web=1</u></span></a><span style=" font-size:11pt;font-family:Calibri">;
PDF is at </span><a href="https://cwe.ccsds.org/sis/docs/SIS-CFDPV1/Draft%20Documents/727x0b5%20--%20Specification%20--%20Blue%20Book/727x0p42_working%204.pdf"><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>https://cwe.ccsds.org/sis/docs/SIS-CFDPV1/Draft%20Documents/727x0b5%20--%20Specification%20--%20Blue%20Book/727x0p42_working%204.pdf</u></span></a><span style=" font-size:11pt;font-family:Calibri">.</span></p>
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<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">This
draft has gone to the Secretariat for final editing, but the technical
stuff won!/t be changing unless we discover a problem in interoperability
testing.</span></p>
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<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Speaking
of which, I hope to do that (small, supplementary) interoperability test
in January.  Cheol and Chenyunjun, please take one more look at the
markups in the revised spec to make sure the final tweaks are reflected
in your code?  I need to modify ION!/s CFDP as well and hope to have
that done in early January.  We!/ve discussed a plan for this supplementary
testing, and we should try to tie off that discussion and finalize the
plan sometime in the next couple of weeks.  (Holidays in the U.S.
will complicate this, but it should still be doable.)</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">The
end is in sight, I swear.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Scott</span></p>
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_______________________________________________</span><span style=" font-size:12pt;font-family:sans-serif"><br>
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