Improves service using Firebase A_B Testing

- Firebase Meetup#12
https://firebase-community.connpass.com/event/121685/

1. Cookpad Inc. 2019.03.28 Firebase Meetup #12 'JSFCBTF
   "#
   5FTUJOH࢖ͬͯαʔϏεվળΛ͢Δ 4VHVSV
   ,JTIJNPUP
2. Cookpad Inc. All Rights Reserved. ͓͠ͳ͕͖ w ࣗݾ঺հɺܞΘ͍ͬͯΔαʔϏε঺հ
   w 'JSFCBTF
   "#
   5FTUJOHʹ͍ͭͯ
   w ಋೖํ๏
   w ςετͷ݁Ռ͕ͰͨΒ͢Δ͜ͱ
   w 'JSFCBTF
   "#
   5FTUJOHΛΑΓ׆༻͢ΔͨΊʹ
   w$MPVE
   'VODUJPOTͱͷ࿈ܞ
   w#JH2VFSZͱͷ࿈ܞ
3. Cookpad Inc. All Rights Reserved. ࣗݾ঺հ wΫοΫύουͰΤϯδχΞΛ͍ͯ͠·͢
   w'JSFCBTF͸೥ࠒ͔Β࢖͍࢝Ί·ͨ͠
   w$MPVE
   'JSFTUPSFͷηΩϡϦςΟʔϧʔϧ͓͡͞Μ
   wΦϜϥΠε͕޷͖Ͱ͢ɻ
   w5XJUUFS
   !@THS@LTNU
   w(JU)VC
   THSLTNU !3
4. Cookpad Inc. All Rights Reserved. ,PNFSDPͱ͸ ൢചऀ ΫϦΤΠλʔ ͞Μ͕࡞ͬͨྉཧಓ۩΍͏ͭΘɺௐຯྉ΍৯ࡐΛɺ
   ߪೖऀ ΧελϚʔ ͕ΞϓϦΛ௨ͯ͠ߪೖͰ͖ΔΞϓϦͰ͢ɻ
 ݱࡏɺJ04Ͱ̎ΞϓϦల։͍ͯ͠·͢ɻ ྉཧָ͕͘͠ͳΔϚϧγΣΞϓϦ !4
5. Cookpad Inc. All Rights Reserved. !5
6. Cookpad Inc. All Rights Reserved. !6
7. Cookpad Inc. All Rights Reserved. !7 IUUQTTQFBLFSEFDLDPNTHSLTNUBVTFDBTFPGpSFCBTFJOLPNFSDP
8. "#
   ςετ
9. Cookpad Inc. All Rights Reserved. "#
   ςετͱ͸ w ओʹΠϯλʔωοτϚʔέςΟϯάͰߦΘΕΔɺࢪࡦ൑அͷͨΊͷࢼݧͷ૯শ
   wࢪࡦͷྑ൱Λ൑அ͢ΔͨΊʹɺͭͷࢪࡦಉ࢜Λൺֱݕ౼͢Δ͜ͱ
   wԿ͔͠Βͷج४Λ΋ͱʹɺίϯτϩʔϧάϧʔϓͱɺςετΛ͍ͤͨ͞άϧʔϓʹ෼͚ɺ ޙऀʹνϟϨϯδΛͤͯ݁͞ՌΛൺֱ͢Δ
   w৽͍͠΋ͷΛͭಉ࣌ʹνϟϨϯδͤͯ͞ൺֱ͢ΔɺΑΓ͸ɺطଘͱ৽͍͠΋ͷͱΛൺ΂Δ ͜ͱͷํ͕͓͓͍Ͱ͢
   ˞ൃදޙमਖ਼͠·ͨ͠ 
 w ྫ
   wʮ૘݈ඒ஡ʯ طଘ ͱʮ૘݈ඒ஡ɹεοΩϦϒϨϯυʯʢνϟϨϯδ
   wΞϓϦͷԼλϒͷ਺Λͭ طଘ ͱͭʢνϟϨϯδ ग़య
   
   IUUQTKBXJLJQFEJBPSHXJLJ"#ςετ
10. Cookpad Inc. All Rights Reserved. 'JSFCBTF
    "#
    5FTUJOH !10
11. Cookpad Inc. All Rights Reserved. ͲΜͳ΋ͷ͔ w 3FNPUF
    $POpHΛ׆༻ͯ͠ςετΛߦ͏͜ͱ͕Ͱ͖Δ
    wग़͠෼͚͢Δ஋ΛݩʹΞϓϦͷಈ࡞΍֎؍Λมߋ͠ɺॏࢹ͢Δࢦඪʹ࠷΋ߴ͍ޮՌΛൃ ش͢Δͷ͕Ͳͷύλʔϯ͔Λςετ͢Δ
    wݕূ݁Ռ͕ग़ͨޙɺΞϓϦͷΞοϓσʔτͳ͠ʹมߋΛ൓өͨ͠Γɺݩʹ໭ͨ͠Γ͕Մೳ
    w /PUJpDBUJPOTΛ࢖ͬͨςετΛߦ͏͜ͱ͕Ͱ͖Δ
    wΞϓϦ΁ͷϢʔβʔͷऔΓࠐΈʹ࠷΋ޮՌతͳจষ͸ͲΜͳ΋ͷ͔Λࢼ͢͜ͱ͕Ͱ͖Δ
    w ର৅Ϣʔβʔͷࢦఆ
    wΞϓϦɺόʔδϣϯɺϢʔβʔϓϩύςΟ΍ΦʔσΟΤϯεɺ1SFEJDUJPOTͰ༧ଌ͞ΕΔϢʔ βʔΛࢦఆ͢Δ͜ͱ͕Ͱ͖Δ
12. Cookpad Inc. All Rights Reserved. !12 IUUQTpSFCBTFHPPHMFDPNEPDTBCUFTUJOH IMKBIPX@EPFT@JU@XPSL
13. Cookpad Inc. All Rights Reserved. "#
    5FTUJOH୯ମͰ࢖͏΋ͷͰ͸ͳ͘ɺ
    3FNPUF$POGJHɺ/PUJGJDBUJPOTɺ"OBMZUJDT
    ౳ͱ૊Έ߹Θͤͯ࢖͏ !13
14. Cookpad Inc. All Rights Reserved. ϝϦοτͱσϝϦοτ !14
15. Cookpad Inc. All Rights Reserved. ϝϦοτ w 3FNPUF
    $POpHΛ׆༻ͯ͠ςετΛߦ͏͜ͱ͕Ͱ͖Δ
    wग़͠෼͚͢Δ஋ΛݩʹΞϓϦͷಈ࡞΍֎؍Λมߋ͠ɺॏࢹ͢Δࢦඪʹ࠷΋ߴ͍ޮՌΛൃش͢Δͷ͕Ͳͷύλʔϯ ͔Λςετ͢Δ
    wݕূ݁Ռ͕ग़ͨޙɺΞϓϦͷΞοϓσʔτͳ͠ʹมߋΛ൓өͨ͠Γɺݩʹ໭ͨ͠Γ͕Մೳ
    w /PUJpDBUJPOTΛ࢖ͬͨςετΛߦ͏͜ͱ͕Ͱ͖Δ
    wΞϓϦ΁ͷϢʔβʔͷऔΓࠐΈʹ࠷΋ޮՌతͳจষ͸ͲΜͳ΋ͷ͔Λࢼ͢͜ͱ͕Ͱ͖Δ
    w ര଎ͰςετΛ։࢝Ͱ͖Δ
    wίϯιʔϧͰઃఆ࣮ͯ͠ߦ͢Δ͚ͩͳͷͰσΟϨΫλʔͰ΋ૢ࡞ͯ͠ςετΛ։࢝͢Δ͜ͱ͕Ͱ͖Δ
    w ػೳ͕ఏڙ͞Εͨ౰ॳͱൺ΂ͯ Θ͔Γ΍͍͢6*ͳͷͰઃఆʹށ࿭͏͜ͱ΋গͳ͍
    w ର৅Ϣʔβʔͷࢦఆ
    wΞϓϦɺόʔδϣϯɺϢʔβʔϓϩύςΟ΍ΦʔσΟΤϯεɺ1SFEJDUJPOTͰ༧ଌ͞ΕΔϢʔβʔΛࢦఆ͢Δ͜ͱ͕ Ͱ͖Δ
16. Cookpad Inc. All Rights Reserved. σϝϦοτ w ࣄલʹ४උ͍ͯ͠ͳ͍ͱ͍͖ͳΓಋೖ͸ݫ͍͠
    w
    ࣄલʹ"OBMZUJDTΠϕϯτ΍ϢʔβʔϓϩύςΟΛఆ͓͔ٛͯ͠ͳ͍ͱࡉ͔͍ग़͠෼͚΍ɺϝΠϯ ͱͳΔࢦඪΛࢦఆͰ͖ͳ͍ͷͰݕূͮ͠Β͍
    w "#Λ෼͚Δͱ͖ͷࡉ͔͍෼͚ํ΍ಠࣗϧʔϧΛෑ͘ͷ͕೉͍͠
    wྫ͑͹ɺVTFS@JEͷԼҰܻͷ਺ࣈ͕ۮ਺ح਺ͱ͍ͬͨ෼͚ํΛ΍Δͷ͕೉͍͠ 'JSFCBTFͷVJEͰ΍ Δ৔߹͸ಛʹɻ 
 ֎෦%#ͷVTFS@JEͰ΍Δ৔߹͸ϢʔβʔϓϩύςΟͱ͔Ͱ͏·͘΍Δ͜ͱʹͳΓͦ͏ɻ
    w ݕূ฼਺͕গͳ͍ͱ'JSFCBTFͷ൑அʹ࣌ؒΛཁ͢Δ
    wࣗ෼ͨͪͰ෼ੳ͢Δͱ͖΋ಉ༷ͷ໰୊͕ൃੜ͢ΔͷͰݻ༗ͷ࿩Ͱ͸ͳ͍͕ɺ'JSFCBTFͷίϯιʔ ϧଆͰͲͪΒ͕༏ҐͰ͋Δ͔Λਪఆͯ͘͠ΕΔ΋ͷ͕ɺ฼਺͕গͳ͚Ε͹ͦͷ෼೔਺Λཁ͢Δ͜ ͱʹͳΔ
17. ςετΛ࡞࣮ͬͯࢪ͢Δखॱ
    3FNPUF$POGJH
18. Cookpad Inc. All Rights Reserved. !18
19. Cookpad Inc. All Rights Reserved. 4UFQ
    جຊ w ςετ໊ͱઆ໌ΛܾΊΔ
    w"#
    5FTUJOHͷҰཡ΍ৄࡉͷ࣌ʹදࣔ͞ΕΔςΩετʹͳΔɻ
    w௚઀ςετʹԿ͔Өڹ͕ग़ΔΘ͚Ͱ͸ͳ͍ͷͰΘ͔Γ΍͍͢ςετ໊ͱઆ໌Λॻ͚͹େৎ෉
    w ޙͰ࿩͠·͢ #JH2VFSZͱͷ࿈ܞͰΫΤϦΛୟ࣌͘ʹࢦఆͨ͠ςετ໊͕ར༻͞ΕΔ
    
20. Cookpad Inc. All Rights Reserved. 4UFQ
    λʔήοτઃఆ w λʔήοτͱͳΔର৅Ϣʔβʔɺׂ߹ΛܾΊΔ
    wΞϓϦɺϢʔβʔϓϩύςΟ౳ΛݩʹλʔήοτΛܾΊΔ
    wͦͷλʔήοτ಺ͷԿʹରͯ͠ςετΛ࣮ߦ͢Δ͔ΛܾΊΔɻͩͱɺλʔήοτϢʔβʔͰࢦఆͨ͠Ϣʔβʔ ͷ͏ͪɺͷϢʔβʔʹରͯ͠"#ςετࣗମΛ࣮ࢪͤ͞Δͱ͍͏͜ͱʹͳΔɻ
    w ΞΫςΟϕʔγϣϯΠϕϯτΛࢦఆ͢ΔͱɺλʔήοτϢʔβʔͷ͏ͪɺͦͷΠϕϯτΛൃՐͤͨ͞ϢʔβʔͷΈ" #ςετ͕༗ޮʹͳΔ
21. Cookpad Inc. All Rights Reserved. 4UFQ
    λʔήοτઃఆ w ΞϓϦࢦఆ͕ඞਢͰɺͦΕͱ"/%৚݅Ͱόʔδϣϯ΍ϢʔβʔϓϩύςΟΛࢦఆͯ͠λʔήο τΛߜΓࠐΊΔ
    wΞϓϦͷλʔήοτΛࢦఆ͠ͳ͍ͱશόʔδϣϯʹରͯ͠ςετ͕૸Δ͜ͱʹͳΔͷͰɺ৽ ػೳͷ"#Λ৽͘͠ϦϦʔε͢ΔόʔδϣϯͰࢦఆ͢Δͱ͖͸͔ͬ͠Γࢦఆ͠Α͏
22. Cookpad Inc. All Rights Reserved. 4UFQ
    ໨ඪ w ࢦඪΛܾΊΔ
    wςετΛ࣮ߦ͢Δʹ͋ͨͬͯҰ൪ஔ͍͍ͨࢦඪ Πϕϯτ Λઃఆ͢Δ
    wϝΠϯͱͳΔࢦඪͷ΄͔ɺ࠷େͭ·ͰଞͷࢦඪΛࢦఆͰ͖ΔɻσϑΥϧτͰϢʔβʔΤϯήʔδ ϝϯτɺఆணɺΫϥογϡϑϦʔϢʔβʔΛݟΔΑ͏ʹͳ͍ͬͯΔ
    
23. Cookpad Inc. All Rights Reserved. 4UFQ
    όϦΞϯτ
24. Cookpad Inc. All Rights Reserved. 4UFQ
    όϦΞϯτ w 4UFQͰఆΊͨλʔήοτͷ฼਺͔Βۉ౳ʹίϯτϩʔϧάϧʔϓͱόϦΞϯτάϧʔ ϓʹ෼͚ͯ3FNPUF$POpHͷ஋ΛͲ͏ग़͠෼͚Δ͔ΛܾΊΔ
    wجຊతʹ͸ίϯτϩʔϧάϧʔϓ͸͍͡ΒͣɺόϦΞϯτ"ͷ஋Λมߋͨ͠΋ͷʹ͢ Δ
    wόϦΞϯτ͸૿΍͢͜ͱ͕Ͱ͖ͯɺύλʔϯ "#$ͱ͍͏ͷ͔ ςετ΋Մೳ
    w3FNPUF$POpHͷLFZ͸ෳ਺ઃఆͰ͖Δ
    
25. Cookpad Inc. All Rights Reserved. ϓϨϏϡʔͱެ։
26. Cookpad Inc. All Rights Reserved. ϓϨϏϡʔͱެ։ w ςετͷ಺༰Λ֬ೝͯ͠໰୊͕ͳ͚Ε͹։࢝͢Δ
    wมߋ͍߲ͨ͠໨͕͋Ε͹ެ։લͰ͋Ε͹ฤू͕Ͱ͖Δ
    wެ։ޙ͸มߋ͕Ͱ͖ͳ͍ͷͰɺมߋͨ͘͠ͳͬͨΒҰ౓ςετΛఀࢭ͔ͯ͠Βෳ੡ ͯ͠ฤू͠࠶౓ެ։͢Δඞཁ͕͋Δ
    
27. ݕূ͕ਐΜͩΒ
28. Cookpad Inc. All Rights Reserved. !28
29. Cookpad Inc. All Rights Reserved. ɾςετͷൣғΛ֦େ͢Δ
    ɾ͢΂ͯͷϢʔβʔʹ৽͍͠ػೳΛ൓ө͢Δ
 ɾ͢΂ͯͷϢʔβʔʹɺςετલͷঢ়ଶΛ൓ө͢Δ
    ɾςετΛऴྃ͢Δ
    ˠऴྃޙʹ΋όϦΞϯτͷల։͸Մೳ
    औΕΔΞΫγϣϯ
30. Cookpad Inc. All Rights Reserved. λʔήοτͷ͏ͪʹςετΛ࣮ࢪ͕ͨ͠
    ਺͕ෆ଍͍ͯ͠ΔͷͰ֦େ༷ͯ͠ࢠΛݟ͍ͨ !30
31. Cookpad Inc. All Rights Reserved. !31
32. Cookpad Inc. All Rights Reserved. !32
33. Cookpad Inc. All Rights Reserved. ݕূͨ݁͠Ռɺ
 ޮՌ͕͋ͬͨΑ͏ͳͷͰ൓ө͍ͨ͠ʢશల։ʣ !33
34. Cookpad Inc. All Rights Reserved. ৽͍͠ػೳ ঢ়ଶΛ൓ө͢Δ w ػೳΛ൓ө͢Δʹ͸ɺ࣮ߦத΋͘͠͸ςετΛఀࢭޙʹʮόϦΞϯτͷల։ʯΛબͿ
    w3FNPUF$POpHͷ৔߹͸൓ө͍ͤͨ͞όϦΞϯτͷ஋ΛબΜͰ3FNPUF$POpHΛߋ৽
    w/PUJpDBUJPOTͷ৔߹͸ɺ௨஌Λૹ৴͍ͯ͠ͳ͍Ϣʔβʔʹɺૹ৴͍ͨ͠όϦΞϯτͷ ϝοηʔδΛૹ৴͢Δ
    wެ։ޙ͸มߋ͕Ͱ͖ͳ͍ͷͰɺมߋͨ͘͠ͳͬͨΒҰ౓ςετΛఀࢭ͔ͯ͠Βෳ੡ ͯ͠ฤू͠࠶౓ެ։͢Δඞཁ͕͋Δ
    
35. Cookpad Inc. All Rights Reserved. !35
36. Cookpad Inc. All Rights Reserved. !36
37. Cookpad Inc. All Rights Reserved. ݕূͨ݁͠Ռɺ
 ޮՌ͕͋ͬͨͱ͍͑ͳ͍ͷͰݩʹ໭͍ͨ͠ !37
38. Cookpad Inc. All Rights Reserved. ςετΛ࣮ࢪͨ͠Ϣʔβʔʹରͯ͠Ҏલͷঢ়ଶΛదԠ͢Δ w ݕূͷ݁Ռ৽͍͠ػೳ͕༗ޮͰͳ͔ͬͨ৔߹΋ɺઌ΄ͲͱͲ͏Α͏ʹόϦΞϯτͷల ։͔Βίϯτϩʔϧάϧʔϓͷ஋Λ൓өͤͯ͞ߋ৽͢Δ
    w୯ʹςετͷఀࢭ͚ͩͰ͸ɺςετΛ࣮ࢪ͍ͯͨ͠Ϣʔβʔʹ஋͕൓ө͞Εͳ͍ͷ Ͱ͔ͬ͠ΓͱόϦΞϯτͷల։Λ͢Δʢ͋Δ͍͸ఀࢭޙʹ3FNPUF$POpHͷը໘͔Β ௚઀ݱঢ়ͷ஋Ͱߋ৽Λ͔͚Δ
39. Cookpad Inc. All Rights Reserved. ,PNFSDPͰ௚ۙऔΓ૊Μͩվળྫ !39
40. Cookpad Inc. All Rights Reserved.
41. Cookpad Inc. All Rights Reserved.
42. Cookpad Inc. All Rights Reserved. ࣮ࡍʹ΍ͬͨ͜ͱ w ݱঢ়͕͢͞λϒ͔Βݕࡧػೳ͕࢖͑Δ͕ɺϗʔϜը໘্෦ʹݕࡧόʔΛஔ͍ͨ৔߹ʹͦ͜ ͔Βݕࡧ͢ΔϢʔβʔ͕૿Ճ͢Δ͔ɺ͔ͦ͜Βߪೖʹͭͳ͕Δ͔Ͳ͏͔Λଌఆ
    w3FNPUF$POpHͰݕࡧόʔΛग़͔͢ग़͞ͳ͍͔ͷCPPMΛ੾Γସ͑Δ͚ͩ
    wࢀߟࢦඪͱͳΔΠϕϯτϩά͸ࣄલʹ࢓ࠐΜͰ͓͘
    wग़͠෼͚ΔػೳΛ͍Εͨ΋ͷΛ"QQ4UPSFʹਃ੥͠ɺެ։ͨ͠ஈ֊ͰςετΛ։࢝
    wग़͠෼͚Δػೳ͕ೖͬͨόʔδϣϯҎ߱ͷϢʔβʔʹͷΈదԠ͞ΕΔΑ͏ʹλʔήοτ Λߜͬͨ
    w ςετΛ࣮ߦͨ݁͠Ռɺݕࡧόʔ͋Γͳ͠Λൺֱͯ͠ϝΠϯͱͳΔࢦඪʹରͯ͠ͲͪΒ͔ ͕༏Ґʹͳͬͨͱ͸ݴ͑ͳ͍݁ՌʹͳͬͨͷͰɺҰ୴ςετΛఀࢭ͠ɺݪঢ়෮ؼͤͨ͞ɻ
 ࣍ͷҰखΛݕ౼த
43. ΑΓ׆༻͢ΔͨΊʹ
44. Cookpad Inc. All Rights Reserved. ςετΛશల։ͤͨ͞Βɺ
    3FNPUF$POGJHͷΩϟογϡؔ܎ͳ͘ଈ࣌൓ө͍ͤͨ͞ !44
45. Cookpad Inc. All Rights Reserved. 3FNPUF
    $POGJH
    ͷߋ৽ΛϦΞϧλΠϜͰ఻೻͢Δ !45 IUUQTpSFCBTFHPPHMFDPNEPDTSFNPUFDPOpHQSPQBHBUFVQEBUFTSFBMUJNF IMKB
46. Cookpad Inc. All Rights Reserved. !46 IUUQTpSFCBTFHPPHMFDPNEPDTSFNPUFDPOpHQSPQBHBUFVQEBUFTSFBMUJNF IMKB
47. Cookpad Inc. All Rights Reserved. ྲྀΕ w 3FNPUF$POpHͷ஋Λมߋ͠ɺ൓ө͢Δ
    w $MPVE
    'VODUJPOTͷ3FNPUF$POpHΠϕϯττϦΨʔΛ࢖ͬͯɺ୺຤ʹαΠϨϯτ௨஌ ΛૹΔ
    w௨஌Λड͚औͬͨΒ࣍ճͷΞϓϦىಈ͔࣌ΞϓϦ͕ΞΫςΟϒͳΒऔಘ͠ʹ͍͘
    w ࠷৽ͷ৘ใΛऔಘ͠ʹߦ͘
    w͜ͷͱ͖͸Ωϟογϡ࣌ؒΛҰ࣌తʹແࢹͯ͠औಘ͠ʹ͍͘
    wऔಘ͕ऴΘͬͨΒ6*౳ʹ൓өͤ͞Δ
48. Cookpad Inc. All Rights Reserved. !48
49. Cookpad Inc. All Rights Reserved. !49
50. Cookpad Inc. All Rights Reserved. ͨͬͨ͜Ε͚ͩ !50
51. Cookpad Inc. All Rights Reserved. #JH2VFSZͱͷ࿈ܞ !51
52. Cookpad Inc. All Rights Reserved. 'JSFCBTFͷίϯιʔϧͰͷ݁Ռ͚ͩͰͳ͘ɺ
    #JH2VFSZʹ݁ՌΛΤΫεϙʔτͯࣗ͠෼ͨͪͰ
    ෼ੳ͢Δ͜ͱ͕Մೳ !52
53. Cookpad Inc. All Rights Reserved. !53
54. Cookpad Inc. All Rights Reserved. !54
55. Cookpad Inc. All Rights Reserved. !55
56. Cookpad Inc. All Rights Reserved. ΫΤϦͷදࣔ !56
57. Cookpad Inc. All Rights Reserved. ΫΤϦ͕ࣗಈੜ੒͞ΕΔͷͰ
    ͋ͱ͸ͦΕΛࣗ෼ͷ෼ੳ͍ͨ͠ܗʹ
 ม͍͚͑ͯ͹PL !57
58. ͦͷଞ
59. Cookpad Inc. All Rights Reserved. IUUQTGJSFCBTFHPPHMFDPNEPDTBCUFTUJOHWJEFPTFSJFT IMKB "#
    5FTUJOHΛΑΓਂ͘ཧղ͢Δ
    ͨΊͷಈը΋ެ։͞Ε͍ͯ·͢
60. Cookpad Inc. All Rights Reserved. IUUQTHJUIVCDPNTHSLTNU-PCTUFS 4XJGUͰ3FNPUF$POGJHΛѻ͍΍͘͢͢Δ
    044
    -PCTUFSΛग़͍ͯ͠·͢
61. Cookpad Inc. All Rights Reserved. IUUQTXXXXBOUFEMZDPNQSPKFDUT ,PNFSDPͰҰॹʹಇ͖͍ͨ
    'JSFCBTF࢖ͬͨ։ൃ͍ͨ͠
    ͳਓΛ୳͍ͯ͠·͢ɻ IUUQTXXXXBOUFEMZDPNQSPKFDUT
62. 5IBOL
    ZPV