Rediscovery of fun ruby

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%BSUʹුؾͨ͠Β 3VCZ͸࠷ߴͩͱ࠶ೝࣝͨ͠࿩ 5BNB3VCZձٞ !NBLJDBNFM

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ሱ࠭ℚࢺ c!NBLJDBNFMԫჰຣ࠱ cᇩൔ߶ഠ(BJBYƋŧũƋŶưƊ⣈ŧƉŧơż c3VCZ3BJMT㠥୍ŲƬŧ c'MVUUFS%BSU㠥ȌᄅŲƬŧ

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'MVUUFSĤ c(PPHMFῘ㻂ƑǅȃǏǭǿǙǞǫƿ✣ǶῘ㻂4%,c'8 c୍ᄅƎWFS㻂і c୍ᄅƎ'MVUUFSGPS8FC㻂і

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%BSUĤ c(PPHMFῘ㻂Ƒ'MVUUFSƊ൐ƲƯƮ࿽∽ c୍Ǝ֨ṳƃů࠻Ǝޅ߭ƥඵƶƊƮ c୍ᄅƎ%BSUů㻂іŸƯƉఏඵ߭ള

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%BSUĤ

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ťƮರ ರڱůࣂರŮƌũŮ⃷⃾źƂŧƶƃŴƌa  ǷǓǙǟളūƉƍŧŮƍĤ ````` ťƮƊźƪʙ ƍŧbbbbb  `````ŶƶƍۋŻƊℼŲźŮƍŧƊżƐʙ

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ťƮರ

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ರڱҠቔů҂ь c%BUF5JNFǅǿǏƑƢƊa%BUFǅǿǏůƍŧ cwCFHJOOJOH0G%BZxƋŮƍŧ  ࣢ࢸ⡘ƋźƉℭhƫŲ൐ũ cwNPOUIxƋŮƊŰƍŧ  %VSBUJPOǅǿǏƒťƮŴƌaǴƺǅȃ૰ƑίෘƑƢ

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ေຬƒťƮ ]EBSUMBOHTEL  IUUQTHJUIVCDPNEBSUMBOHTELJTTVFT

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ေຬƒťƮ ]EBSUMBOHTEL  IUUQTHJUIVCDPNEBSUMBOHTELJTTVFT

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ေຬƒťƮ ]EBSUMBOHTEL  IUUQTHJUIVCDPNEBSUMBOHTELJTTVFT

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ƥźŮźƉğ 044ቔӮƑὨ≓

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044ቔӮƑὨ≓ cሱٳů঒ƆƉŧƮŶƋƒⅅŮƥ঒ƆƉŧƮ  ¹*TTVFƊ⃷⃾㥽Ƣ

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044ቔӮƑὨ≓ cǆǆƮƑƒξůቋᗥƊŧŧ  !PLVSBNBTBGVNJ

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c⇀ṳƑࣂťƮ῜ⅳƵ  ŰƄƶƋǀ✣ǭȉƍǉ✣ǟƊࢳ㢯żƮ 044ቔӮƑὨ≓ !B@NBUTVEB  ;0;0ǜǅǤȃǎ✣ǐƑ࠯ℿἪ↜ρԫ൦a඾โ൦a.BU[൦Ǝ↙ŲƾȉǎǡƸದളb  ʙƋƎŮŲℼŲaℼŲŶƋƵ㛀źƣʙ  IUUQTUFDICMPH[P[PDPNFOUSZ@JOUFSWJFX

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ƇŲƆƂ

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ȌᄅᗥƋƒŧƇƍƑŮ c3BJMT 

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ȌᄅᗥƋƒŧƇƍƑŮ

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ȌᄅᗥƋƒŧƇƍƑŮ c3VCZ 

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ȌᄅᗥƋƒŧƇƍƑŮ DMBTT%BUF]ǀǬǎƽǅǞᆷཟǏǅȀǭǞ࿽∽3VCZȀǫƷȂȉǏǴǡǻƸȁ   IUUQTEPDTSVCZMBOHPSHKBMBUFTUDMBTT%BUFIUNM

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ǉ✣ǟƵ䪎ƣ

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ǉ✣ǟƵ䪎ƣ

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EBUF@DPSFD

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EBUF@DPSFD

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EBUF@DPSFD t = year * 12 + month + other

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EBUF@DPSFD y = t / 12 m = t % 12 + 1 t = year * 12 + month + other d = dat.day(self.day)

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EBUF@DPSFD y = t / 12 m = t % 12 + 1 t = year * 12 + month + other d = dat.day(self.day)

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EBUF@DPSFD

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EBUF@DPSFD

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EBUF@DPSFD

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EBUF@DPSFD

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EBUF@DPSFD y = t / 12 m = t % 12 + 1 t = year * 12 + month + other d = dat.day(self.day)

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EBUF@DPSFD y = t / 12 m = t % 12 + 1 t = year * 12 + month + other d = dat.day(self.day)

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EBUF@DPSFD

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EBUF@DPSFD y = t / 12 m = t % 12 + 1 t = year * 12 + month + other d = dat.day(self.day)

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EBUF@DPSFD y = t / 12 m = t % 12 + 1 t = year * 12 + month + other d = dat.day(self.day)

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żŷŲᾏ੻߄żƮƋ c%BUFOFX źƂƋźƉ

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ƍƶƊŶƶƍŶƋźƉƮƑĤ c㔂ሱุƑₒźŸ DMBTT%BUF]ǀǬǎƽǅǞᆷཟǏǅȀǭǞ࿽∽3VCZȀǫƷȂȉǏǴǡǻƸȁ   IUUQTEPDTSVCZMBOHPSHKBMBUFTUDMBTT%BUFIUNM ݓƎƫƆƉ  ڿ㔂ರƥ↎ũƫĆ

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EBUF@DPSFD

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EBUF@DPSFD

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EBUF@DPSFD

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EBUF@DPSFD

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ƍƶƊŶƶƍŶƋźƉƮƑĤ c㔂ሱุƑₒźŸ  ƵၩℰžŽƎℼŴƮƫũƎ cƲƂźƂƄƒw௹րżƮটᄅƑࣂರxůƞźŧƃŴ

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wƂƑźŧ3VCZx  Ƶ⻎⇀żƮƂƤ

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ƄƍƢƎ cEBUF@DPSFDƒ୍ᄅƎቔӮ

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ƄƍƢƎ cEBUF@DPSFDƑభƒEBUFSCƊ⻎ል  ƀƑℭEBUFSCƒ ྛŲƬŧ

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ƄƍƢƎ c¹EBUF@DPSFD c¹EBUFSC c ¹EBUFSC cEBUFSC *OJUJBM

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ơƋƤ c3VCZůቋۚƍƑƒa  ቋۚƎƍƮƫũƎDPNNJUůὩơƯƉŰƂŮƬ cwźƂŧƫũƎℼŴƮxƑů3VCZƑᷠ৯ƑƕƋƇ cቋԚŮƬປᡋƍƥƑƍƶƉƍŧ cሱٳƑ֡ऎƑ㠥ൎƵᆩƮƋദ࣍ƎۋŻƬƯƉ  ƥƆƋݺŰƎƍƮƑƊӑŭżżƤ

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`)BQQZ$PEJOH

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ŷౢ䒙ťƭůƋũŷŹŧơźƂ