rwc2014 - Speaker Deck

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Ϋϥ΢υαʔϏεΛ࢖ͬͯ؆୯ʹ࢝ΊΔ 3VCZ8FCΞϓϦέʔγϣϯ։ൃ 6TFDMPVETFSWJDFTUPFBTJMZEFWFMPQ 3VCZXFCBQQMJDBUJPOT ޒेཛྷ๜໌,VOJBLJ*("3"4)* TQJDFMJGF *OD 3VCZ8PSME$POGFSFODF HJUIVCJHBJHB UXJUUFSJHBJHB GBDFCPPLLVOJBLJJHBSBTIJ

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ޒेཛྷ๜໌ גࣜձࣾTQJDFMJGF ։ൃ෦෦௕ HJUIVCJHBJHB UXJUUFSJHBJHB GBDFCPPLLVOJBLJJHBSBTIJ

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ΤϯδχΞΦϑΟε෺݅ืूத BUUPCF/:P⒏DFIUUQTXXXqJDLSDPNQIPUPTBTPOBT גࣜձࣾTQJDFMJGF ౡࠜࢧࣾઃཱ४උத

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"HFOEB w3VCZ 3BJMTͷ։ൃ؀ڥͷ࡞Γํ wΫϥ΢υαʔϏε/JUSPVT*0 w8PSLTIPQͷ࣮ྫΛ௨ͨ͡ධՁ w8FCΞϓϦͷֶशํ๏ w3BJMT w4JOBUSB

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࿩͢͜ͱ wΫϥ΢υ؀ڥΛ࢖ͬͨ3VCZ 3BJMTͷ։ൃ wϫʔΫγϣοϓͰ࢖͏ࡍʹؾΛ͚ͭΔ͜ͱ w3VCZ 3BJMTͷֶशํ๏ͱֶशࢿྉ wର৅ɿϓϩάϥϛϯάΛ͜Ε͔Β࢝ΊΔํ ͜ͷൃදΛฉ͘ͱֶश ڭҭ Λ࢝ΊΒΕΔ ࿩͞ͳ͍͜ͱ w+BWB4DSJQU w೉͍ٕ͠ज़ͷ࿩ ͜ͷൃදͰ࿩͢͜ͱɾ࿩͞ͳ͍͜ͱ

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3VCZ 3BJMTͷ։ൃ؀ڥΛ࡞Δͷ͸೉͍͠ IUUQTXXXqJDLSDPNQIPUPTIJEEFO@WJDF

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3VCZ 3BJMTͷ։ൃ؀ڥ 8JOEPXT "DUJWF4DSJQU3VCZ 3VCZ DPNQJMFS 3BJMT*OTUBMMFS 3VCZ .BD QSFJOTUBMMFE 3VCZ SCFOW 3VCZ YDPEFIPNFCSFX -JOVY SCFOW 3VCZ DPNQJMFS ΑΓ؆୯ʹηοτΞοϓͰ͖Δ3VCZ 3BJMT։ൃ؀ڥͷఏҊ ‎/JUSPVT*0

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IUUQTXXXOJUSPVTJP

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8IBU`T/JUSPVT*0ʁ ϒϥ΢β͔Βར༻Ͱ͖Δ Ϋϥ΢υ্ͷ౷߹։ൃ؀ڥ *%& 'JMF&YQMPSFS &EJUPS 5FSNJOBM

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/JUSPVT*0ͷྑ͞ ແྉϓϥϯͰձһొ࿥Λͨ͠Β͙͢ʹ 3VCZͷ։ൃ͕Ͱ͖Δ

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/JUSPVT*0ͰͰ͖Δ͜ͱ w5FSNJOBM͔Β3VCZίʔυΛ࣮ߦ w3BJMT 4JOBUSBͰ8FCΞϓϦ։ൃ wHJUΛ࢖ͬͯHJUIVCͱ࿈ܞ w࠷৽όʔδϣϯͷ3VCZΛར༻Մೳ

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/JUSPVT*0ͷ࢖͍ํ

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/JUSPVT*0Ͱ։ൃΛ࢝ΊΔ ձһొ࿥

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/JUSPVT*0Ͱ։ൃΛ࢝ΊΔ $SFBUF#PY #09 ։ൃ࣮ߦ؀ڥ ͷ୯Ґ

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/JUSPVT*0Ͱ։ൃΛ࢝ΊΔ ༗ྉϓϥϯΛ ࢖͏৔߹͸ /0Λ ߪೖ͢Δ /0 /JUSPVT*0 ͰͷԾ૝௨՟ ແྉϓϥϯͱ ͷࠩ͸ޙड़

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/JUSPVT*0Ͱ։ൃΛ࢝ΊΔ μογϡϘʔυ ఀࢭ࣌͸4UBSUΛԡͯ͠ىಈ ੺͸ఀࢭத ͠͹Β͘࢖Θͳ͍ͱࣗಈఀࢭ͢Δ

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/JUSPVT*0Ͱ։ൃΛ࢝ΊΔ μογϡϘʔυ *%&ϘλϯΛԡͯ͠։ൃը໘΁Ҡಈ ྘͸ىಈத

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*%& 'JMF&YQMPSFS &EJUPS 5FSNJOBM

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/JUSPVT*0Ͱ3BJMTΞϓϦΛͭ͘Δ TDBGGPMEΛ࢖ͬͯຊͷ৘ใΛొ࿥͢Δ؆୯ͳΞϓϦΛͭ͘Γ·͢ EFNP IUUQZPVUVCF4Y*SXQ7%

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SBJMTTFSWFSͨ͠ͱ͖ͷ઀ଓํ๏ ˞Πϯλʔωοτ্ʹެ։͞ΕΔͷͰ ެ։ͨ͘͠ͳ͍৔߹͸ɺ 1SFWJFX4FU1BTTXPSE͔Β #"4*$ೝূͷύεϫʔυΛઃఆ /JUSPVT*0Ͱ3BJMTΞϓϦΛͭ͘Δ

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/JUSPVT*0ͷ஫ҙ఺ wແྉϓϥϯͰ͸ఆظతʹΠϯελϯε͕ఀࢭ w؅ཧ༻μογϡϘʔυ͔Β࠶ىಈՄೳʢແྉʣ wϫʔΫγϣοϓͷؒʹఀࢭͨ͠έʔε͸ແ͠ wωοτϫʔΫ͕ͳ͍ͱ࢖͑ͳ͍

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"DBTFTUVEZJOXPSLTIPQ 3BJMT(JSMT0TBLB IUUQTXXXqJDLSDPNQIPUPTRVBEJOTFU

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"DBTFTUVEZJOXPSLTIPQ 3BJMT(JSMTେࡕͰ/JUSPVT*0Λར༻ wର৅ऀ͸ॳֶऀʢॳϓϩάϥϛϯάͷํ΋ʣ w࡞੒ͨ͠ΞϓϦ͸ࣸਅ౤ߘϛχϒϩάΞϓϦ wࢿྉɿIUUQSBJMTHJSMTKQBQQ wશ໿࣌ؒͷ࡞ۀ࣌ؒ w؀ڥߏங ձһొ࿥ ΞϓϦ࣮૷ ެ։

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"DBTFTUVEZJOXPSLTIPQ ྑ͍఺ w؀ڥߏங ձһొ࿥ ͕୹࣌ؒͰ؆୯ ෼ఔ౓ w෼͔Γқ͘࢖͍қ͍ͱ޷ҙతͳҙݟ w1$Λସ͑ͨ৔߹΋Ҿ͖ଓ͖ར༻Ͱ͖Δ w/JUSPVT*0͚ͩͰΠϯλʔωοτެ։Մೳ 1BB4ෆཁ

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"DBTFTUVEZJOXPSLTIPQ ѱ͍఺ w*&Ͱ͸Ұ෦ػೳ͕࢖͑ͳ͍ͷͰ$ISPNFϒϥ΢βͳͲ͕ඞཁ wωοτϫʔΫ͕੾Εͨ৔߹ʹ࢖͑ͳ͍ wϑΝΠϧΤΫεϓϩʔϥͰҙਤͤͣυϥοάΞϯυυϩοϓͷ ૢ࡞Λͯ͠͠·͍ɺϑΥϧμ͕ߦํෆ໌ʹͳΔ w/JUSPVT*0͕αʔϏεΛఀࢭͨ͠৔߹ʹར༻Ͱ͖ͳ͘ͳΔ ࣄલʹઆ໌Λߦ͍ɺଞͷ։ൃ؀ڥߏஙͱͲͪΒ΋ બ୒Մೳʹ͓ͯ͘͠ͷ͕ྑ͍

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TQJDFMJGFࣾһཱྀߦUP/JUSPVT*0 ͻͱ΍͢ΈCSFBL IUUQTXXXqJDLSDPNQIPUPTJHBJHB

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/JUSPVT*0JTFYDJUFEUPTFFTP NVDITVQQPSUGSPNPVSGSJFOET JO+BQBO8FXPVMEMPWFUPIFBS GSPNZPVBOETFFXIBUZPV`SF CVJMEJOHXJUI/JUSPVT*0 .FTTBHFGSPN/JUSPVT*0

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3BJMTΛ࢖ͬͨ 8FCΞϓϦ։ൃͷֶशํ๏ ํ਑ wର৅͸ϓϩάϥϛϯά͕ॳΊͯͷํ wͰ͖Δ͚ͩ෼͔Γқ͘આ໌͍ͨ͠

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3BJMTͷֶशࢿྉͷྫ w3BJMT(VJEFT XFC IUUQSBJMTHVJEFTKQ w3BJMT5VUPSJBM XFC IUUQSBJMTUVUPSJBMKQ w࣮ફ3VCZPO3BJMT ॻ੶ wஶࠇా౒*4#/ ϓϩάϥϚ޲͚‎೉͘͠ɺཧղ͕ࠔ೉ͳ৔߹΋ ͜ΕΒͷࢿྉͷखલΛຒΊΔɺ ΑΓ෼͔Γқ͍ࢿྉΛ࡞੒ͨ͠

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IUUQCJUMZJHB[FNJ IUUQTHJUIVCDPNJHBJHBSBJMT@UFYUCPPL

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3BJMTͷڭՊॻֶशͷྲྀΕ w࣮ࡍʹ࡞ͬͯԿ͕Ͱ͖Δ͔Λ஌Δ w3BJMTΞϓϦͷ࢓૊ΈΛ஌Δ wखຊͱͳΔίʔυʹ৮ΕΔ wσόοάͷํ๏Λ஌Δ w՝୊Λ͜ͳ͍ͯ͘͠

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୊ࡐը૾౤ߘػೳ෇͖ϛχϒϩάΞϓϦ ࣮ࡍʹ࡞ͬͯԿ͕Ͱ͖Δ͔Λ஌Δ

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ը૾౤ߘػೳ෇͖ϛχϒϩάΞϓϦ গ͠ͷίϚϯ υͱίʔυྔ Ͱ࣮૷Ͱ͖Δ 3BJMTͷڭՊॻΑΓҰ෦ൈਮ

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3BJMTΞϓϦͷ࢓૊ΈΛ஌Δ 3BJMTͷڭՊॻΑΓҰ෦ൈਮ

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αϯϓϧΞϓϦͰखຊͱͳΔίʔυʹ৮ΕΔ ը૾౤ߘػೳ෇͖ϛχϒϩάΞϓϦ wTDBGGPME ੜ੒͞Εͨίʔυ͸ྑ͍खຊ w$36%جૅ w.7$ w3BJMTͷॲཧͷྲྀΕ wSPVUFT DPOUSPMMFS WJFX w(FN #VOEMFS ը૾౤ߘDBSFFSXBWFHFN ֶͿཁૉ

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σόοάͷํ๏Λ஌Δ wΤϥʔͷಡΈํ wϩάͷग़͠ํɺಡΈํ wϒϥ΢βͷσόοάػೳ wQSZͰσόοά

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ֶशͷྲྀΕ ͜ͷઌ΁ͭͮ͘ಓΛࣔ͢ w࣮ࡍʹ࡞ͬͯԿ͕Ͱ͖Δ͔Λ஌Δ w3BJMTΞϓϦͷ࢓૊ΈΛ஌Δ wखຊͱͳΔίʔυʹ৮ΕΔ wσόοάͷํ๏Λ஌Δ w՝୊Λ͜ͳ͍ͯ͘͠

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3BJMTΛ΋ͬͱֶͼ͍ͨਓ΁ 8FC্ͷࢿྉ w3BJMTͷڭՊॻ wIUUQCJUMZJHB[FNJ w3BJMT(VJEFTIUUQSBJMTHVJEFTKQ w ໢ཏతͳղઆͰ3BJMTͷػೳΛֶͿ w3BJMT5VUPSJBMIUUQSBJMTUVUPSJBMKQ w αϯϓϧΞϓϦͮ͘ΓΛ௨ͯ͡3BJMTΛֶͿ w ୡਓग़൛ձʹిࢠॻ੶൛΋͋ΓIUUQUBUTV[JOFDPNCPPLTSBJMTUVUPSJBM ॻ੶ w࣮ફ3VCZPO3BJMT 3BJMTରԠ wஶࠇా౒*4#/

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TQJDFMJGFࣾһཱྀߦJO/:XJUIࣰݪ༗࢘உ ͻͱ΍͢ΈCSFBL IUUQTXXXqJDLSDPNQIPUPTBTPOBT

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TQJDFMJGFTFSWJDFT

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TQJDFMJGFTQPOTPSFEFWFOUT

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3BJMT 8FCαʔϏε։ൃͷελϯμʔυ ศར͕ͩෳࡶɺशಘίετ͕ߴ͍ 4JOBUSB ϑΝΠϧͰಈ࡞ γϯϓϧͳߏ੒ 8FCΞϓϦͷಈ࡞Λཧղ͢Δͷʹྑ͍୊ࡐ 3VCZ8FC"QQ'SBNFXPSLT

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4JOBUSB4BNQMF IFMMPSC HFNJTJOBUSB SVCZIFMMPSCQ PS SVCZIFMMPSCQP ˢ/JUSPVT*0Ͱ͸PΛ෇༩ IUUQMPDBMIPTU ϒϥ΢βͰΞΫηε SFRVJSFTJOBUSB HFUEP )FMMPXPSME FOE ݁Ռ

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4JOBUSBͱ3BJMTͷൺֱ 4JOBUSB pMF IFMMPSC 3BJMT

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4JOBUSBσʔλอଘ ӬଓԽ σʔλอଘͷ࢓૊Έ͸ผ్༻ҙ͢Δඞཁ͕͋Δ 3BJMTͰඪ४తʹར༻͞Ε͍ͯΔ "DUJWF3FDPSE͸ઃఆ͕ෳࡶʹͳΔ ίʔυ਺ेߦ ָʹσʔλΛอଘ͍ͨ͠ ‎Ϋϥ΢υαʔϏεpSFCBTFͱ )BTIΛอଘͰ͖ΔpSFCBTFHFNΛར༻

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IUUQTXXXpSFCBTFDPN

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'JSFCBTF Ϋϥ΢υ্ͷσʔλ؅ཧαʔϏε pSFCBTFHFNΛ࢖͏ͱ୹͍ίʔυͰ )BTIΦϒδΣΫτͷอଘɺಡΈग़͕͠Մೳ ແྉϓϥϯར༻Մೳ

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ࣄલ४උ ΞΧ΢ϯτΛ࡞੒͠ɺ %BTICPBSE͔Β $3&"5&/&8"11 ϘλϯΛԡͯ͠ ΞϓϦΛ࡞੒͢Δ

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pSFCBTFHFNTBNQMFDPEF pSFCBTF@TBNQMFSC SFRVJSFpSFCBTF VSMIUUQTJHBJHBTBNQMFpSFCBTFJPDPN pSFCBTF'JSFCBTF$MJFOUOFX VSM TUPSBHF@OBNFCPYࣗ༝ʹ໋໊Մೳ I\BQQMF HSBQF^อଘ͢Δ)BTI 4BWF pSFCBTFTFU TUPSBHF@OBNF I -PBE QSFTVMUpSFCBTFHFU TUPSBHF@OBNF CPEZ HFNJpSFCBTF SVCZpSFCBTF@TBNQMFSC ݁Ռ\BQQMF HSBQF^ $POpH 4BWF -PBE ˞VSM͸EBTICPBSEͰ ઃఆͨ͠"1163- )BTIΛอଘͯ͠ಡΈࠐΉ3VCZαϯϓϧίʔυ

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TJOBUSBpSFCBTFTBNQMFDPEF pSFCBTF@TJOBUSBSC SFRVJSFTJOBUSB SFRVJSFpSFCBTF 'JSFCBTFTFUUJOHT VSMIUUQTJHBJHBTBNQMFpSFCBTFJPDPN pSFCBTF'JSFCBTF$MJFOUOFX VSM TUPSBHF@OBNFCPY 4BWF ຊདྷ͸QPTU͕ͩɺΞΫηε͕؆୯ͳͷͰHFU HFUOBNFOBNFEP pSFCBTFTFU TUPSBHF@OBNF \OBNF QBSBNT<OBNF>^ 7JTJUPSOBNF\QBSBNT<OBNF>^ FOE -PBE HFUWJTJUPSEP pSFCBTFHFU TUPSBHF@OBNF CPEZUP@T FOE HFNJpSFCBTFTJOBUSB SVCZpSFCBTF@TJOBUSBSC ˢ/JUSPVT*0Ͱ͸ҎԼΛ෇༩ QP OBNFJHB ϒϥ΢βͰOBNF999΁ΞΫηε WJTJUPS \OBNFJHB^ OBNF999΁ΞΫηεͨ͠ࡍʹ 4BWF͞ΕͨσʔλΛදࣔ

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΋ͬͱֶͼ͍ͨਓ΁4JOBUSB 3VCZฤ wೖ໳4JOBUSB w*4#/ wߨٛࢿྉ 3VCZฤ wIUUQTHJUIVCDPNJHBJHBIJUPUTVCBTIJSVCZ wୈճʙୈճ3VCZฤ ୈճʙୈճͷ3BJMTฤ͸3BJMTͷڭՊॻΛࢀর wͨͷ͍͠3VCZୈ൛ w*4#/

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·ͱΊ w/JUSPVT*0Ͱ؆୯ʹ3VCZ 3BJMT։ൃ wIUUQTXXX/JUSPVT*0 w3BJMTͷڭՊॻΛ࡞੒ͨ͠ wIUUQCJUMZJHB[FNJ wγϯϓϧͳ4JOBUSBͰ8FCΞϓϦΛཧղ w'JSFCBTFHFNͰ؆୯ʹσʔλอଘ

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3VCZ͸։ൃऀΛ ޾ͤʹ͢Δݴޠɻ ΋ͬͱଟ͘ͷ։ൃऀΛ 3VCZͰ޾ͤʹ͍ͨ͠ɻ ·ͭ΋ͱΏ͖ͻΖ

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/JUSPVT*0(VZT দԬઌੜɺ-FXJTڭतɺᖛ࡚͞ΜɺχϑςΟגࣜձࣾླ໦ઌੜɺٶ಺͞Μ ҰڮେֶͷडߨֶੜͷΈͳ͞· 3BJMT(JSMT 3BJMTࣉࢠ԰ͷελοϑɺίʔνɺࢀՃऀͷΈͳ͞· ৬৔ಉ྅ ँࣙ5IBOLT BCPVUNF HJUIVCJHBJHB UXJUUFSJHBJHB GBDFCPPLLVOJBLJJHBSBTIJ U%JBSZIUUQJHBSBTIJLVOJBLJOFU 3BJMTͷڭՊॻIUUQCJUMZJHB[FNJ 2VFTUJPOʁ

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ิ଍ TVQQMFNFOUBSZFYQMBOBUJPO

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/JUSPVT*0Ͱ3VCZΛόʔδϣϯΞοϓ SWNΛར༻͍ͯ͠ΔͷͰɺSWNͷ࡞๏Ͱ࠷৽൛ͷ3VCZΛར༻Մೳ IUUQJHBSBTIJLVOJBLJOFUEJBSZIUNM

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pSFCBTFEBTICPBSE

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͜ͷ1೥ͷRubyΤίγεςϜͷϗοττϐοΫͷ1ͭ ৽ֶ͍͠ͼͷ৔͕ͨ͘͞ΜͰ͖ͨ