Difference between revisions of "Cipher cracking 2009 weekly progress"

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== Weekly progress and questions ==
 
== Weekly progress and questions ==
−
This is where you record your progress and ask questions. Make sure you update this every week. The deadline is every Friday evening. However, if you sometimes slip a little into the weekend (so long as you don't do it too often) we won't be too hard on your marks.
+
This is where you record your progress and ask questions. Make sure you update this every week. The deadline is every Friday evening. However, if you sometimes slip a little into the weekend (so long as you don't do it too often) we won't be too hard on your marks.
 +
 
 +
Please remember that we make use of this progress section to give you your project mark. Your mark will suffer if you don't complete this section.
  
 
=== Semester 1 Week 1===
 
=== Semester 1 Week 1===
Line 6: Line 8:
 
====Andrew====
 
====Andrew====
 
=====This Week=====
 
=====This Week=====
−
#Initiated organisation of first group meeting with Denley, Prof Abbott and Dr Berryman. This meeting occurred on thursday March 5<sup>th</sup>.  
+
#Initiated organisation of first group meeting with Denley, Prof Abbott and Dr Berryman. This meeting occurred on Thursday March 5<sup>th</sup>.  
−
#Reread newspaper article concerning the somerton man murder that was published in the sunday mail several weeks prior to the meeting, and viewed the code as it originally was. This prompted several discussions, but most suprisingly the inclusion (or lack of) the apparently crossed out line of text.  
+
#Reread newspaper article concerning the Somerton man murder that was published in the Sunday mail several weeks prior to the meeting, and viewed the code as it originally was. This prompted several discussions, but most surprisingly the inclusion (or lack of) the apparently crossed out line of text.  
 
=====Next Week Plan=====
 
=====Next Week Plan=====
−
#Attempt to contact the police museum in an attempt to view the somerton man exibits
+
#Attempt to contact the police museum in an attempt to view the Somerton man exhibits
 
#To view and take photos and video where possible
 
#To view and take photos and video where possible
 
#*Somerton beach
 
#*Somerton beach
Line 118: Line 120:
 
#continue preliminary analysis of random samples
 
#continue preliminary analysis of random samples
 
#look at possibility of multiplicitive cypher
 
#look at possibility of multiplicitive cypher
 +
===Semester 1 Mid-Semester Break===
 +
====Denley====
 +
#Implemented initial letter counter
 +
#Compiled some letter frequency plots of various things with initial letter plots also
 +
#Briefly started working on CDR
 +
=====Short-Term Goals=====
 +
#figure out how best to implement a random contiguous text reader
 +
#work on CDR
 +
 +
===Semester 1 Week 7===
 +
====Denley====
 +
#Worked on contiguous text analyser
 +
#Continued to start writing CDR
 +
=====Short-Term Goals=====
 +
#CDR due in 9 days. Will keep working on that mainly
 +
===Semester 1 Week 8===
 +
====Denley====
 +
#Focussing on CDR
 +
#Sampling of contigious text almost complete. Need te get MATLAB or something that can make more complex graphs
 +
=====Short-Term Goals=====
 +
#Currently Cramming to finish CDR
 +
#Will work on graphing results of sampling texts. Basically just need to figure out best way to sort data and graph error bars
 +
#Information theory is starting to interest me so I will probably start investigating the entropy and compression analysis soon.
 +
 +
===Semester 1 week 9===
 +
====Denley====
 +
#finally understands wiki convention of not capitalising every word of a heading :P
 +
#Completed and submitted CDR (collaboratively)
 +
#Group meeting held. Filmed again for Stateline
 +
#Read peer CDR and begun report for peer review
 +
=====Short-term goals=====
 +
#finish peer review report (due thursday)
 +
#Need to redesign initial letter counter software module for increased functionality (eg. counting pairs of letters)
 +
#Will work on graphing results of sampling texts. Basically just need to figure out best way to sort data and graph error bars
 +
#investigate entropy and compression analysis soon.
 +
 +
 +
===Semester 1 week 10===
 +
====Denley====
 +
#Peer review finished and handed up
 +
#Finished code to sample texts for random contiguous blocks of 50
 +
#Redesigned counter modules (it hurts me a bit inside every time I write the 'z' in StreamTokenizer) and decided outputting to CSV is easiest way to go for sorting data. Easy to import to MATLAB I think
 +
#Wrote a crude module to count first order transition (Markov) probabilities from a text. Uploaded some initial results [[Transition probabilities from selected texts|here]]. Will do more soon but might wait to figure out a better way to format it.
 +
#''Acquired'' a good video editing program and started chopping up some clips for use later in the year in the final video. Rekindled my high school passion for video editing :P
 +
=====Short-term goals=====
 +
#Get some Markov data for more texts and estimate probability of occurrence from these
 +
#try removing conjunctions and comparing data
 +
 +
 +
===Semester 1 week 11===
 +
====Denley====
 +
#Ran French through the transition counter. results up
 +
#Interviewed by Peter Goers on ABC 891
 +
#Deliberately neglected project work a bit, working on a big history essay and presentation
 +
=====Short-term goals=====
 +
#More languages to put through Markov counter
 +
#Pick another cipher scheme and encode that
 +
#Maybe extend Markov module to second, third, etc. order (if I can think of a way to present the data)
 +
 +
===Semester 1 week 12===
 +
====Denley====
 +
#Implemented second order transition counter. Results up on wiki
 +
=====Short-term goals=====
 +
#More languages
 +
#Try another cipher scheme
 +
 +
===Semester 1 week 13===
 +
====Denley====
 +
#Nothing
 +
#except group meeting
 +
#had a big history essay due. will do some next week I promise
 +
=====Short-term goals=====
 +
#more languages
 +
#try one-time pad with the Rubaiyat
 +
 +
===Semester 1 week 14?===
 +
====Denley====
 +
#Implemented new result for p=0 condition for the [[Transition probabilities from selected texts|Markov]] probabilities
 +
#Implemented the calculation of the HMMER score for Markov probabilities
 +
#Began working on one-time pad hyphothesis with the Rubaiyat as the pad. Decoding using each poem as the key for two different possible structures have been posted [[Using the Rubaiyat of Omar Khayyam as a one-time pad|here]]
 +
#Wishes that the school would work out their certificate validation problems so that he can syndicate wiki updates
 +
=====Short-term goals=====
 +
#Further work on the one-time pad hypothesis
 +
#Perhaps start using the King James Bible as the pad
 +
 +
===Week ending June 26th===
 +
====Denley====
 +
#Tried another possible one-time pad structure using the Rubaiyat
 +
=====Short-term goals=====
 +
#pass my exams
 +
#use King James Bible as the pad
 +
 +
===Week ending July 3rd===
 +
====Denley====
 +
#Nothing - Exam study has taken priority. All exams done now so back to project next week :)
 +
=====Short-term goals=====
 +
#try King James Bible as a one-time pad
 +
 +
===Week Ending July 10th===
 +
====Denley====
 +
#Started working on a text searcher. Found that the sequence A* Q* C* (Initial Letters of words) does not occur in any of the poems in the Rubaiyat of Omar Khayyam
 +
#Found a bug in my initial letter counter (for markov values)
 +
#Turnie: If u want to have a meeting or something to catch up and allocate some work around let me know. I don't want you to feel like I'm crowding you out but the ball is in your court.
 +
=====Short-term Goals=====
 +
#Find a usable copy of the King James Bibile (KJV and RSV) and the Talmud for use with one-time pad hypothesis and text searcher
 +
#Fix bugs; I'll probably make a separate module that removes punctuation from the text
 +
 +
===Week ending July 17th===
 +
====Denley====
 +
#Found a text version of KJV bible and ran it through text searcher. No A* Q* C* found
 +
#Fixed my bugs. The modules now follow a Stream series structure for both punctuation filtering and initial letter extraction
 +
#Reuploaded Markov stats with new punctuation filter (results are barely different (like 1% error)
 +
#Reuploaded Rubaiyat one-time pad results
 +
#Implemented alternate key usage for Rubaiyat one-time pad system using {A,B,C,...X,Y,Z} = {1,2,3,...,24,25,26}
 +
=====Short-term goals=====
 +
#Get a text version of RSV bible and Talmud
 +
#Try using the bible versions as a one-time pad
 +
 +
===Week ending July 24th===
 +
====Denley====
 +
#Copied a text version of RSV bible
 +
#Found one match for A* Q* C* in RSV bible. Did not turn out to be the code
 +
=====Short-term goals=====
 +
#Upload some results to wiki
 +
#Try using bible books as one time pad
 +
 +
===Semester 2 week 1===
 +
====Denley====
 +
#Coding for treating Bible books as one time pad
 +
=====Short-term goals=====
 +
#Uploading results to the wiki
 +
 +
===Semester 2 week 2===
 +
====Denley====
 +
#Got some results for using the bible versions as a one-time pad. Too large to upload to wiki though
 +
#Started coding to count letter doublets
 +
=====Short-term goals=====
 +
#Finish counting of doublets
 +
#Think about how to post-process one-time pad deciphers as there are too many to put on wiki
 +
 +
===Semester 2 week 3===
 +
====Denley====
 +
#Got doublets relative frequencies. Very close to getting each transition (within a single word)
 +
=====Short-term goals=====
 +
#Finish transitions
 +
#Maybe start searching the bible OTP outputs for the venona code names
 +
 +
===Semester 2 week 4===
 +
====Denley====
 +
#Got stats about letter pairs within words: [[Transitions within words]]
 +
=====Short-term goals=====
 +
#Will start putting together final report this week
 +
 +
===Semester 2 week 5===
 +
====Denley====
 +
#Started collecting eBooks for different languages
 +
=====Short-term goals=====
 +
#Start putting together final report
 +
#Run more languages through Markov probabilities
 +
 +
===Semester 2 week 6===
 +
====Denley====
 +
#Begun putting together and writing final report
 +
=====Short-term goals=====
 +
#Do more report so we can start to see what needs to be done more clearly
 +
 +
===Semester 2 week 7===
 +
====Denley====
 +
#Worked on final report some more
 +
=====Short-term goals=====
 +
#Do more report so we can start to see what needs to be done more clearly
 +
 +
===Semester 2 week 8===
 +
====Denley====
 +
#Not much. Focussed on other subjects' work
 +
=====Short-term goals=====
 +
#Do more report so we can start to see what needs to be done more clearly
 +
 +
===Semester 2 mid-semester break first week===
 +
====Denley====
 +
#Continued compiling report. Structure exists now and i have a better idea of where it is going
 +
#Started collecting a broader range of foreign language ebooks
 +
#Began brainstorming a storyboard for youtube video
 +
=====Short-term goals=====
 +
#Run more eBooks (of different languages) through Markov counter
 +
#Continue writing final report
 +
#Make some pretty graphs for final report
 +
 +
===Semester 2 mid-semester break second week===
 +
====Denley====
 +
#Ran a range of languages through Markov counter. Finalised output of this
 +
#Continued compiling/writing final report
 +
=====Short-term goals=====
 +
#Make pretty graphs
 +
#Finish final report
 +
 +
===Semester 2 week 9===
 +
====Denley====
 +
#Completed my sections of final report
 +
#Handed up a copy of the report to the school office (only 17 mins late :P)
 +
#Handed up a CD of project workspace to Derek's office (I have uploaded the same files to the wiki now anyway)
 +
#Started editing together clips for youtube video
 +
#Started compiling slides for presentation
 +
=====Short-term goals=====
 +
#Finish compiling presentation
 +
#Make some minor alterations to the final report
 +
#Finish youtube video
  
 
==See also==
 
==See also==

Latest revision as of 17:58, 10 October 2009

Contents

Weekly progress and questions

This is where you record your progress and ask questions. Make sure you update this every week. The deadline is every Friday evening. However, if you sometimes slip a little into the weekend (so long as you don't do it too often) we won't be too hard on your marks.

Please remember that we make use of this progress section to give you your project mark. Your mark will suffer if you don't complete this section.

Semester 1 Week 1

Andrew

This Week
  1. Initiated organisation of first group meeting with Denley, Prof Abbott and Dr Berryman. This meeting occurred on Thursday March 5th.
  2. Reread newspaper article concerning the Somerton man murder that was published in the Sunday mail several weeks prior to the meeting, and viewed the code as it originally was. This prompted several discussions, but most surprisingly the inclusion (or lack of) the apparently crossed out line of text.
Next Week Plan
  1. Attempt to contact the police museum in an attempt to view the Somerton man exhibits
  2. To view and take photos and video where possible
    • Somerton beach
      • during the day
      • at dusk
    • The gravesite of the man
    • The Adelaide Railway Station
  3. Try to find which train line was followed by the somerton man on the day of the murder
    1. Find out time taken to travel to the stop he got off at
      1. If possible, look at different train speeds from then to now
      2. Calculate the most precise time possible allotted for him to write/encrypt the code
    2. Try writing on a train to find how difficult it is to write neatly
  4. Hire out National Treasure 1 & 2
    • Watch the Playfair code scene(s)
  5. Try to find a copy of Omar Khayyam
    • If possible take photos of it
  6. Begin attempts of coding for encrypting/decrypting and e-book
    • Plot relative histograms for letter distributions

Denley

  1. Researched case backround: Wikipedia and police site. First group meeting held. Researched Playfair and Vigniere cyphers.
Short Term Goals
  1. Visit sites (graveyard and beach) and take pictures etc
  2. Research frequencies of letters (in different languages)

Semester 1 Week 2

Denley

  • Wrote a simple text counter to count letter frequencies in a given text. George Orwell's 1984 had a frequency characteristic very similar to those given here as general English letter frequencies
  • Started playing with encoding decoding algorithms. Got Caesar cypher working. Will work on extending this to Vigenere soon
Short Term Goals
  • Track down a copy of National Treasure 2 and rip the scene showing the use of the Playfair cypher
  • Try some more eBooks in the frequency calculator and try to get an idea of if/how the English language changes over time and try other European languages too (as Somerton Man had a European look to him)

Andrew

This Week
  1. Contacted police museum and organised a meeting (time TBA) on thursday morning
  2. researched into railway station, hitting a dead end (cloak room supposedly no longer exists, couldnt find anything to prove this, so let it go)
  3. gravesite visit postponed, but have organised to use parents' video camera
  4. train trip irrelevant (discovered by further reading), as a bus was taken, and that bus route no longer exists
    • writing on a bus is difficult, supporting the theory that the line in the code that was thought to be crossed out may well not be
Next Week
  1. finalise visit to the police museum
  2. view somerton beach
  3. view Denley's code for generating statistical letter distributions, edit of necessary to simulate certain tests
    • assist Denley with his "changing over time" testing
  4. view Omar Khayyam, if possible
  5. organise and view cemetary, taking movie/photos


Semester 1 Week 3

Denley

  1. Put a few more ebooks through the frequency counter as well as the code itself to get some idea of letter frequencies
  2. based on this I did a first attempt at decoding it as a substitution cypher (will put results on wiki soon)
  3. Visited police museum and grave site
Short Term Goals
  1. still need to get national treasure 2 before the proposal seminar
  2. start preparing proposal presentation. This is the main priority at this stage

Andrew

This Week
  1. Viewed police museum and grave site, taking pictures and movies
    • noticed hair on the man's bust, look at DNA testing
  2. viewed somerton beach: houses from photograph couldnt be identified, but a house similar to a mirror image of the house in the photograph was found
  3. found out why my attempt of coding failed while Denleys had succeeded by conversing with Denley
  4. collected several samples from several different people writing 50 (approx) letters at random, and have begun to analyze statistically (much more analysis needed though)
Next Week
  1. PREPARE FOR PROPOSAL SEMINAR (of greatest importance)
  2. analyse random letter samples, create histograms etc to be used in the above

Semester 1 Week 4/5

Denley

  1. been busy with job applications and such. hence doing a fortnight report
  2. Had project proposal seminar. Went well
  3. Implemented encode methods for Playfair cipher (no decode yet)
Short Term Goals
  1. Still have a few more applications to do.
  2. Will look at encoding some eBooks into Playfair (Edit: i will instead work on sampling some contigious text form eBooks and first letters)

Andrew

  1. writing function to work with playfair cypher (both encrypt and decrypt....apologies for lack of commuinication Denley, i think we have overlapped) (Denley: thats ok, it was urs to do i just got interested one day when i was up late)
  2. have also been busy with job stuff
  3. had proposal seminar and practice run (including combining slides).
  4. continued collection of random samples
near future
  1. still have to work on job apps
  2. complete playfair, then analyse output with various keys and missing letters (Denley: something to keep in mind. The playfair usually omits the letter Q but we cant as there is a Q in the Somerton Man's code)
  3. analyse random samples, collect similar while drunk (forgot on pub crawl)

Semester 1 Week 6

Denley

  1. I have been running lists of different categories through the frequency counter. So far have done a list of elements, town names, human names and train station names in adelaide.
  2. Had photo shoot (our fame is ever increasing)
  3. Started programming to take samples of contigious text
Short Term Goals
  1. Finish contigious text progromming
  2. Make first letter frequency counter
  3. Put more lists through and compile results and put on wiki

Andrew

  1. began analysis of random samples, awaiting good opportunity for alcohol-inhibited assessment
  2. had photo shoot
  3. continued programming of playfair cypher, and discovered its abiguiities
plan for week 7
  1. continue and/or complete playfair analysis
  2. continue preliminary analysis of random samples
  3. look at possibility of multiplicitive cypher

Semester 1 Mid-Semester Break

Denley

  1. Implemented initial letter counter
  2. Compiled some letter frequency plots of various things with initial letter plots also
  3. Briefly started working on CDR
Short-Term Goals
  1. figure out how best to implement a random contiguous text reader
  2. work on CDR

Semester 1 Week 7

Denley

  1. Worked on contiguous text analyser
  2. Continued to start writing CDR
Short-Term Goals
  1. CDR due in 9 days. Will keep working on that mainly

Semester 1 Week 8

Denley

  1. Focussing on CDR
  2. Sampling of contigious text almost complete. Need te get MATLAB or something that can make more complex graphs
Short-Term Goals
  1. Currently Cramming to finish CDR
  2. Will work on graphing results of sampling texts. Basically just need to figure out best way to sort data and graph error bars
  3. Information theory is starting to interest me so I will probably start investigating the entropy and compression analysis soon.

Semester 1 week 9

Denley

  1. finally understands wiki convention of not capitalising every word of a heading :P
  2. Completed and submitted CDR (collaboratively)
  3. Group meeting held. Filmed again for Stateline
  4. Read peer CDR and begun report for peer review
Short-term goals
  1. finish peer review report (due thursday)
  2. Need to redesign initial letter counter software module for increased functionality (eg. counting pairs of letters)
  3. Will work on graphing results of sampling texts. Basically just need to figure out best way to sort data and graph error bars
  4. investigate entropy and compression analysis soon.


Semester 1 week 10

Denley

  1. Peer review finished and handed up
  2. Finished code to sample texts for random contiguous blocks of 50
  3. Redesigned counter modules (it hurts me a bit inside every time I write the 'z' in StreamTokenizer) and decided outputting to CSV is easiest way to go for sorting data. Easy to import to MATLAB I think
  4. Wrote a crude module to count first order transition (Markov) probabilities from a text. Uploaded some initial results here. Will do more soon but might wait to figure out a better way to format it.
  5. Acquired a good video editing program and started chopping up some clips for use later in the year in the final video. Rekindled my high school passion for video editing :P
Short-term goals
  1. Get some Markov data for more texts and estimate probability of occurrence from these
  2. try removing conjunctions and comparing data


Semester 1 week 11

Denley

  1. Ran French through the transition counter. results up
  2. Interviewed by Peter Goers on ABC 891
  3. Deliberately neglected project work a bit, working on a big history essay and presentation
Short-term goals
  1. More languages to put through Markov counter
  2. Pick another cipher scheme and encode that
  3. Maybe extend Markov module to second, third, etc. order (if I can think of a way to present the data)

Semester 1 week 12

Denley

  1. Implemented second order transition counter. Results up on wiki
Short-term goals
  1. More languages
  2. Try another cipher scheme

Semester 1 week 13

Denley

  1. Nothing
  2. except group meeting
  3. had a big history essay due. will do some next week I promise
Short-term goals
  1. more languages
  2. try one-time pad with the Rubaiyat

Semester 1 week 14?

Denley

  1. Implemented new result for p=0 condition for the Markov probabilities
  2. Implemented the calculation of the HMMER score for Markov probabilities
  3. Began working on one-time pad hyphothesis with the Rubaiyat as the pad. Decoding using each poem as the key for two different possible structures have been posted here
  4. Wishes that the school would work out their certificate validation problems so that he can syndicate wiki updates
Short-term goals
  1. Further work on the one-time pad hypothesis
  2. Perhaps start using the King James Bible as the pad

Week ending June 26th

Denley

  1. Tried another possible one-time pad structure using the Rubaiyat
Short-term goals
  1. pass my exams
  2. use King James Bible as the pad

Week ending July 3rd

Denley

  1. Nothing - Exam study has taken priority. All exams done now so back to project next week :)
Short-term goals
  1. try King James Bible as a one-time pad

Week Ending July 10th

Denley

  1. Started working on a text searcher. Found that the sequence A* Q* C* (Initial Letters of words) does not occur in any of the poems in the Rubaiyat of Omar Khayyam
  2. Found a bug in my initial letter counter (for markov values)
  3. Turnie: If u want to have a meeting or something to catch up and allocate some work around let me know. I don't want you to feel like I'm crowding you out but the ball is in your court.
Short-term Goals
  1. Find a usable copy of the King James Bibile (KJV and RSV) and the Talmud for use with one-time pad hypothesis and text searcher
  2. Fix bugs; I'll probably make a separate module that removes punctuation from the text

Week ending July 17th

Denley

  1. Found a text version of KJV bible and ran it through text searcher. No A* Q* C* found
  2. Fixed my bugs. The modules now follow a Stream series structure for both punctuation filtering and initial letter extraction
  3. Reuploaded Markov stats with new punctuation filter (results are barely different (like 1% error)
  4. Reuploaded Rubaiyat one-time pad results
  5. Implemented alternate key usage for Rubaiyat one-time pad system using {A,B,C,...X,Y,Z} = {1,2,3,...,24,25,26}
Short-term goals
  1. Get a text version of RSV bible and Talmud
  2. Try using the bible versions as a one-time pad

Week ending July 24th

Denley

  1. Copied a text version of RSV bible
  2. Found one match for A* Q* C* in RSV bible. Did not turn out to be the code
Short-term goals
  1. Upload some results to wiki
  2. Try using bible books as one time pad

Semester 2 week 1

Denley

  1. Coding for treating Bible books as one time pad
Short-term goals
  1. Uploading results to the wiki

Semester 2 week 2

Denley

  1. Got some results for using the bible versions as a one-time pad. Too large to upload to wiki though
  2. Started coding to count letter doublets
Short-term goals
  1. Finish counting of doublets
  2. Think about how to post-process one-time pad deciphers as there are too many to put on wiki

Semester 2 week 3

Denley

  1. Got doublets relative frequencies. Very close to getting each transition (within a single word)
Short-term goals
  1. Finish transitions
  2. Maybe start searching the bible OTP outputs for the venona code names

Semester 2 week 4

Denley

  1. Got stats about letter pairs within words: Transitions within words
Short-term goals
  1. Will start putting together final report this week

Semester 2 week 5

Denley

  1. Started collecting eBooks for different languages
Short-term goals
  1. Start putting together final report
  2. Run more languages through Markov probabilities

Semester 2 week 6

Denley

  1. Begun putting together and writing final report
Short-term goals
  1. Do more report so we can start to see what needs to be done more clearly

Semester 2 week 7

Denley

  1. Worked on final report some more
Short-term goals
  1. Do more report so we can start to see what needs to be done more clearly

Semester 2 week 8

Denley

  1. Not much. Focussed on other subjects' work
Short-term goals
  1. Do more report so we can start to see what needs to be done more clearly

Semester 2 mid-semester break first week

Denley

  1. Continued compiling report. Structure exists now and i have a better idea of where it is going
  2. Started collecting a broader range of foreign language ebooks
  3. Began brainstorming a storyboard for youtube video
Short-term goals
  1. Run more eBooks (of different languages) through Markov counter
  2. Continue writing final report
  3. Make some pretty graphs for final report

Semester 2 mid-semester break second week

Denley

  1. Ran a range of languages through Markov counter. Finalised output of this
  2. Continued compiling/writing final report
Short-term goals
  1. Make pretty graphs
  2. Finish final report

Semester 2 week 9

Denley

  1. Completed my sections of final report
  2. Handed up a copy of the report to the school office (only 17 mins late :P)
  3. Handed up a CD of project workspace to Derek's office (I have uploaded the same files to the wiki now anyway)
  4. Started editing together clips for youtube video
  5. Started compiling slides for presentation
Short-term goals
  1. Finish compiling presentation
  2. Make some minor alterations to the final report
  3. Finish youtube video

See also


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