2021 day 8

2021/08/08.py

@@ -0,0 +1,83 @@
+displays = []
+with open("input.txt") as f:
+	displays = [
+		[patterns, output]
+		for line in f.read().split('\n')
+		for patterns, output in [line.split(' | ')]
+	]
+
+part1 = 0
+for display in displays:
+	_, output = display
+	for signal in output.split(' '):
+		if len(signal) in [2, 4, 3, 7]: # "1", "4", "7", and "8" are unique
+			part1 += 1
+print(part1)
+
+part2 = 0
+for display in displays:
+	patterns, output = display
+	patterns = patterns.split(' ')
+	output = output.split(' ')
+	# we're going to use set theory. some digits are ambigous...
+	ZERO_SIX_OR_NINE = set()
+	TWO_THREE_OR_FIVE = set()
+	# preliminary sorting based on known lengths
+	for pattern in patterns:
+		if len(pattern) == 2:
+			ONE = set(pattern)
+		elif len(pattern) == 4:
+			FOUR = set(pattern)
+		elif len(pattern) == 3:
+			SEVEN = set(pattern)
+		elif len(pattern) == 7:
+			EIGHT = set(pattern)
+		elif len(pattern) == 6:
+			ZERO_SIX_OR_NINE.add(pattern)
+		elif len(pattern) == 5:
+			TWO_THREE_OR_FIVE.add(pattern)
+	# do some set geometry to figure out the ambiguous digits
+	for pattern in ZERO_SIX_OR_NINE:
+		if (set(pattern) | ONE ) == EIGHT:
+			SIX = set(pattern)
+			ZERO_OR_NINE = {p for p in ZERO_SIX_OR_NINE if p != pattern}
+			R1 = EIGHT - SIX
+			R2 = ONE - R1
+	for pattern in TWO_THREE_OR_FIVE:
+		if ONE.issubset(set(pattern)):
+			THREE = set(pattern)
+		elif R1.issubset(set(pattern)):
+			TWO = set(pattern)
+		elif R2.issubset(set(pattern)):
+			FIVE = set(pattern)
+	for pattern in ZERO_OR_NINE:
+		if FOUR.issubset(set(pattern)):
+			NINE = set(pattern)
+		else:
+			ZERO = set(pattern)
+	# now that we've decoded our digit patterns, convert the output and sum up.
+	number = ''
+	for digit in output:
+		digit = set(digit)
+		if digit == ZERO:
+			number += '0'
+		elif digit == ONE:
+			number += '1'
+		elif digit == TWO:
+			number += '2'
+		elif digit == THREE:
+			number += '3'
+		elif digit == FOUR:
+			number += '4'
+		elif digit == FIVE:
+			number += '5'
+		elif digit == SIX:
+			number += '6'
+		elif digit == SEVEN:
+			number += '7'
+		elif digit == EIGHT:
+			number += '8'
+		elif digit == NINE:
+			number += '9'
+	part2 += int(number)
+print(part2)

2021/08/input.txt

@@ -0,0 +1,200 @@
+dcbgefa cebd bfega eadbf db cdfaeb dba bfcgda egadcf aedcf | egadcfb eafcd db debc
+dfea ea abe dfgaeb fdcgba badeg dcfbeag dbgaf bcged fcebag | gfadb dfagb fdgabe eagdbf
+cd gfcde cdbfage cbdfae edc fedgac gadc feagd febdga gbfec | adbfeg dbfcae facbde gcfde
+ecafb abgfc deacbgf fe fbe fgec edgafb cgbafd ebfgca ebcad | cfbae fbcga dfabceg ceabf
+eagfcd abfdecg fe fdae egf cfgda gcedb dcgabf bcegaf cegdf | gcfda feg efg cadgbf
+gfcdab efadc cadbgfe beca badfce ecfbd edcagf gbdef cfb bc | gdecbfa cbea gedbf aceb
+cgafb abgcde debfca ecafgd ecdag bcd dacbgfe gebd db cabgd | cfdaeg dcfeag cbgda agfcb
+cegba dg gbd feabgd fdecgb gbced fdbcae dfcg fbced gdceafb | gfecdab dbg dg fdceabg
+cebgdaf gbfaec cebg fbcag bac efagb cgdaf fcbade fgadeb cb | abcgf fdeabg dbafge cadgf
+aefdg ga becfagd dag gfdbe bgeacd dgaefb caefd cfebdg bafg | gda afegdb afdce efacd
+dfacgb afegc cbfgae dceg gcafbde dfabe gadef gd cfegda adg | bcafeg efadb efbda cgefa
+gbfae cbgf ceg dgefba cafde bcagde dbfaegc gefca egcfba cg | abefg agfbe cafgeb fgeadbc
+cabef ecdfbg gceabf facg dbage ecfabd eagbfcd gc gbc eabcg | bfedcg cfbgde acebg bcfadeg
+bcedagf abecf cdaebf gacb dgfec gaf gebafc bgfdea ag cefga | egfac dfcbea agf deacbf
+febagcd bfgcae fecab abcfde dgbec da fadebg ade adbce dfca | gbefdca aedfgb adebgf cbdge
+acb fgadc ebaf efdbgc ab dbgaec caegbfd fdcbe abcedf cfdba | ecdfb bfdcea ebcdga cedfb
+cbaeg befda bdagfe gd dga dgbae deacgf fbgdeac dfbg decbfa | gecafd gad ceagb debaf
+egd de bfadeg gcfbe gdbcafe bgfeca cedgfb cdagf edgcf bedc | cefgd ecgafb edg ged
+aebfgc bgf bcag fceabd gcdef becdafg befac gb fcegb badegf | ebfdga cgba gabecf cfedba
+abgdfe gafdc fdb egbdfca cgbaef edba egfba cgefdb bd agdfb | dfb fgdca cgafd fgdba
+agfeb dgafb agfecb gfcaed abegc febc ef fea ebfcdga bedagc | ebcadg eaf bafge gcaeb
+ba febcag gfbec fcab bgfecd dgeaf eacbdg fagedcb efgab abg | egfdbc geabcd cegbf ecfbgd
+fage egacd cdagb dcefag gcedfb efgcd cedgfba fdcbea dae ea | ae aed gfedbc faeg
+gefac cbe cb fgacdeb bceadg agfebc fedgca abfc egcfb ebdfg | egbfc fbdeg aefdcg gcbfe
+agbfce edbga agfde cfage afcged bgfcde bcagedf cdaf fdg df | bdcegaf dgefa eadgb fcgdae
+acebg ce bcadg gcedfb ebc bfeag degfba acfe bacdgef baefgc | aebdfg abgfe abecgf cgabd
+bgafd dgbae dbcfae acfegd bcfg cgafd fdbgca fb dcbgafe bfa | afdbg baf bfgc bf
+daebcf fcdgbe egfab gaedb da agcdbe dagc adebfcg bda cgbde | gfabe gdecab eabdg cdgbfae
+decbga bdac da cgdfe ebacg agbfce cagde fecbagd gda dfegba | da fcedg fcdge dga
+dfecba fbc gceab ebfg acdegb bf afdebgc befagc cgdfa bgfac | baecgd gacfbe bf cfagb
+bgefca agcbf dfgceab bcedfa ebafg fdgae feb dcgabf gebc be | agbfe be becfga gcbafe
+cbgaed gb dgb defcg gdfeb ecafgd dbgfce bcfg facegbd deabf | gdcef adgbec egdfb acgefd
+bcead bdecag adbfec gda gabe febgcda ag caedg gabdfc efcdg | ebag ageb cedafb edbca
+bg cdbga ebcg adgfeb dagbefc dbg caedg cgfdae acfdb geadbc | cabdf gbce bacdeg dabegf
+fecdgab bd gfcade agedf cafbg cagdbe adbgf gbd efbgad efbd | egafdc gfdea bfaedcg gabedc
+cfdgbe cgaeb edab gacde ebg be edcagbf edcgaf abfcg adcgbe | gafbc gcbaf adgbec be
+geb bdfg abced fdbaeg gdafe gfdecba bg gcedaf bdage ebfgca | cgefda egdbaf gdcfae eagdb
+cafbge cfdgb abfce aedfbg cade de beafcgd cdbef dbcfae def | dfbaec cfdbe gcaefb dgbfc
+bafce bcage ebcagfd fc decbfa bdcf fdaeb acdegf efc egbadf | aefbd abegc eabdf bfdea
+gc dfeacg ebfacdg ebcdfa bdfac gbcda fbcg dafbcg cag bdega | dcabfe cbfg fabdc gcfb
+fdaeb agbfe ecadbg efdacgb dbf debac cdaf dgcfbe dacbfe fd | abdfe gfeab fdac dfb
+cbfdg adgcb gfebc gedabc bdf df agcfbd dgaf gfdebac ecadbf | fcgbd bgdca adbfgc gfad
+bgf aefbg fgdcab ecbfadg eagbc bgedac fbec fgabec fb egadf | bfec afged ebfc gefad
+cgafdbe fedgab gafde adbg gebcfd efcag bcdfae fdg fdeba gd | fgabedc dg cegaf cfbaed
+bfecagd gcfdb ce fgabed gbeafc ecdbf bce deca acfdeb beadf | bce agfecb gedbaf dfbec
+dfb abcfge fdbage acefd cgbd db gefbc bcdfe acdgfbe gbdcfe | fcdbe fdecgb fgcbe fceda
+efdac gacbed cafeb fcgd fdaeg cd gebdfa fdbagec ecd dacfeg | edafcg deacgf eadcgb dgfc
+degabc egc cegfa gdefa gafbc ce cfed cagedfb aefgdc eafdgb | gdfeab agfcb gebfda fadge
+aegbdc dbgfec begac ef fdgca efc gacebf eafgc bafe edcfbga | acfeg bfgeca cef befa
+cfegdba bdage bgc faceb cbafge bdefca gdfabc caebg gc gefc | cfbead cg cg eafbc
+db bdaegf abd debgfac feacb edafg dfbcga dafeb agdefc debg | eafcb bafed dafgbe edfba
+dbegac efdcg ecdgfa geafc fabgdec efcab gfad ag ega dcebfg | defgacb efgcbd dagf fgad
+dafbe bdfgae cd cadfe ecfdab bcdefag gface dcfb acd cbegad | efabd dcbf decfbga dbgeaf
+ca gfbdc eadcfgb cfgade efac afdeg dcgaeb dgfabe gca gdfac | dacbeg gcefda cfdbg geabfd
+fbecag fdaegc gfade edcafgb ecf cfabd ecdfa gcde deafbg ce | ebfcga aecfbg cef abgcfe
+eadcbg ecd gdebf fgeac cd dcfb fecdg fdgaecb cdfebg afebgd | gdfec adefbgc febgcd bgfadec
+egfdca bfceg cfg cgabfe bfged bcadeg agebdcf cf bacf agbec | defgb cgbfade beagcf fgaceb
+ebdga efabgc abcfdeg fe gfabcd dcfag fgaed ceafgd fge cfde | acbefgd agecfd edafg gadfcb
+eadgc edagbf fbgd fadbce bg ebg ebdfa cfedabg cbfgea ebgad | aedbg egfdab cedbfa aecbfg
+gd cefga cdabfge dgfce afbdgc dacfbe fgdebc cdg cbedf gebd | dg febdcga bedg gd
+gedfb bcfgde cbfde cebg egf adbcef edgcaf cgdeabf eg gafbd | gdbef abecfd ge feg
+bdacfg cba ab gcdefa cdbeg acgef egcfbda gafebc abfe caegb | cafeg bgcea gface agbec
+fcabdge gdceab bdgcf ecfdb cgd cgef gc cfebdg dgfab adbfec | dgc gdcfbe gc fegc
+cgbd gefbdc cdfeg gaecdf gfbedac cebdf faecb dbf db gedfab | cbdef bdf ebacgdf ecbfd
+fdecbg bagcef beagc dbgfaec edagbc dgafb eafgb efg ef acfe | cgfaeb ceaf dbcgea gfbae
+cfdae cefg acf bcaedg aecdg eadbgfc fc dbafe bfadgc defcag | efgc cfa ceadbg cfa
+egc bgadef fcbdg cgdfe cdafge ce gadebc begcdfa faedg efca | efadg cdeafg cgfdb faegdb
+ed agdbc bedcg cfageb edfb fgbdec ged dfaceg aedcgfb gfceb | de debf agdcb fdgaec
+beadgfc bc fabc cbeda dbefa cfbead ecfgbd cbe dgeca ebagfd | dceba edcafb cadgbfe daceb
+dgbcef afdbc fgdaeb ef edf edcgb eabcdg gbacfde cefg cfedb | ebfcd gbfedc bafcd ef
+fecgb gbcfad aebdgc cgbaf cfedag gbcad afg fa afdb cafedgb | afdcge gdbacf acgdb gcdaeb
+abd cfeadbg agedbf ba fdaeb fbga fcdae dabgce fcebdg edfbg | dfegcb dcebgf befdcg bfade
+gbacfed gdbce gdaec fcedag eb cgfdb adbe ecb eadgcb fegcba | acebdg egbfac dcafge fbdgc
+fbea fa acgbdf bdcgfe deacg daf fbged ceagbfd fgade gedfab | bcgfaed af af dfa
+fedbgc dfgea gbdefa bagd egacbdf bceaf aegbf gb ecdgaf bgf | bg caedfg aefgdbc bfg
+dabcgfe dbfce cgeda adcbe bgaced eab gadb fdgcea ba bcefga | cdbae ba cfaedg cdaeg
+bed bagedc agebd feagcd edcga bdac bgfaedc fbega gebdfc db | debcfg cagbde egadc dceag
+afgcb agef badcf ebfagc befcgd gfb fg fdagbec gbcea gecbda | gdcfeb bdfceg cdfba cegfdb
+cdbegf abgfedc geabcf dgefa fc cagdbe cfe fagce cfab gabce | cfba acfb cf bagfedc
+ecbga abedgc fce gbacfe aecdgbf afcb eagcf cgefdb fc adefg | afdeg dcfabeg bfca gdacbef
+cedfg gaedb befcadg gaced cadfeg cabdfg ac adc befdcg ecfa | egbad cafgbd egfdcb dgecf
+agbc cegda bdecfa edgfb gdbace adb ab bgfdace gcdefa ebdag | abedg ba gbdae geacd
+cefbg gaed gadfb gfabdce egfdb edagbf ed dgbacf deb dfebca | ebd cefadgb ecfbgad bdacfg
+ea adbfc defcgba eafb dgfbac edacbf fdcge ace fadec aedgbc | ea cfdea bagdce fdegc
+cedfg cea dfabecg efgcab fcgea agbfcd feab facbg ae gadebc | bafgcd ea cdbeag gcafb
+bgcd cb dfbac dcagefb gdcfab acefgb cbf acgfd adfegc bfaed | cbfgad fgacd cfdba gcbd
+gebcfda dabcg bgdaef dgc cg gfbad eacdb fgbc cgfdba gfadce | agdfb befdag gcd dbagf
+cbedgf fcg degacf agcdbe dbcaf gbdec dgbcf bgef fg fbadegc | gadefc adcbf acdbf fbcda
+egadf agf dcga cbfedg ceafgb ga cdfaeg dafbe bacfedg ecgfd | feadbcg gcad agf fbead
+agcbfd cdbge afecdg adfe gafce agd facgedb da cdega feagbc | faegbc gdcbfea cegfa cbfeag
+egc bfcdea gbfe afcgeb ge aebcf adgcf adgcfeb dabgce agecf | cgabde cegaf fcaeg gfceba
+bceda bea fdgcae eb eafcgbd egadc fcageb dbacge bdeg bcafd | bcfad edacb cgefda bgfaec
+fgabd bdgefa cagdf gfb fbaceg efdb cbagde fb afgedcb edagb | gdfca gadeb agfdc ecdbga
+ab gafdbc ceafg dgaecfb feagcb efcdag dbefg caeb baf efgba | abf abf agecbf fedgb
+gbdface gbadce gaedc cfagbd cbdga eda ed gcfae bgfead decb | cbed fbdcage dbgac acbegd
+fcda ecgbdf df abefd ceafbd cfageb dageb cabef dfe edacgfb | gedba eabgfc fd acgbef
+dg egbafc fdbaecg decg fedab agcfdb cbgea cegadb egdba bdg | dg gaebc cdeg gedab
+fcbd db adfgc fdbgca gaefb bcfadge dfgab bda dcebag gacfed | geadfc bd adb bfagdce
+ecdgb beagc gbcedaf dcbgfe bgfadc faebc ag acgdbe egda cga | gceab eadg gaed dacgbf
+degcbfa febdgc egca cgd dbcga gaefdb bdgae cabdf cg dbeacg | dcbgef deagbc baegcd acgdb
+fbc gfdeba gbefca deafb decbaf agdcf cb cfdab edbc dcegafb | abgfed dfbca bcdfea dabfe
+de gdefacb becdag begac eabfgc ebdc edg aedfbg cfagd caged | bcgfea deagcb bced cbed
+bafc gbafed gfb fgaebc fb aegcf fcbaged afecgd befcg cbegd | gfaec fbagce agfedb cgebaf
+edcgab dgfb dagef bcfgae fg eabdfg defca degba efg cgdbafe | bdage gdbea bfgcdea aegfdb
+ceafg fca fcabge cgedf dbfacg af fgbcade cedgab abceg feab | eacgf fbcgda fca fdcgabe
+gfacd gcbd afdbgc bafecg bc eabdf abc acdefg aegfcdb bfdca | bafcegd facbd bca cdgb
+bdafge edfgcb cdf becf fgbdca efdgb egacd fc ecgdabf degfc | egabdf dbefga cafbedg fgcdeb
+bd bcfagde fadb efbdc cedfab aecdgb eadfc bdc cgfbe gfdcae | dfab cbfeg bd efdca
+cf gcfdab bgfadce cadegb adecgf fcd eacf eagdc fgedc fbged | gedbacf ecgad dfabgce degac
+afbceg fge fe becga cfae febgdca fdgab fcbgde bcaegd baegf | baegf ef degcfb eacbg
+gae cfgadbe feagc adgf adfbce fdcgea ga beagdc feadc gcebf | adfg eag edfca ga
+ecdb cd cfadbe febadg agecbdf dfbae cfabg dcf afdbc aefdgc | dabfce adfbce cebd cdf
+dcebaf ebdac ged bdag bfceg bdeagc bcdge ebdcagf dg gcfade | bdga fcegb gfcaedb gbedc
+fcdeagb cgbd cgf abdfge cdfagb afbdg bafce bgcfa defcag cg | cgf cfdgea fdagce gfabc
+becdgf gd bgfdca gfd dabcef gefca adbg facebdg afdgc bcdaf | acbdef dfacg dgf edgabcf
+fbaegcd egcfa faebc cdabf efdb fabcgd cbe daecgb bcadfe eb | eb fgadcb dabfc dgceba
+decafb cabfd fg ebcdfg facgd dagec fgba fbcedag gcf gacbdf | cadbf gedfcba fbacd cabfd
+dgface dfabe dfaeg fg gdbeca fge gcdea gfceabd fcga efbgcd | becdga bcagde fagdec afcg
+ceadb gdefbc cegdbaf adc bfdea cebdag acgb ca gcafed cbdeg | dac bcedag cbeda cabg
+fdb dcgfaeb bgadef fbcdg bdce afcbg bd gfeadc dfgec fdgecb | bcagf bdaecfg ecfgadb bfd
+gdefa bg egcafdb egbafd dbfegc afgb ecfgda abedc dbg dabeg | fdegbc eadgf afdeg gb
+bfcad bag gbec agedc agfdceb gb fdagbe begdac gefacd gbcda | acfbd gba dcbag abcdf
+aeg bdcega ge fgcda bdcae afegbd ecdga ecabdf egbc dbeagfc | ecabd edcbga agbfdec afdbeg
+fgdce deca agfedc bdfeagc bdcfag eagfb dga cgdfeb adfge ad | gacedf agbfe aegdf fcegda
+bafg ecfbag cabfe cadfeg fedcb eabcgd cagfebd agebc af fae | aegdbc afgedc feacb fa
+bcgdfe cabg cfaedb gc cfg efbdagc fagdc eagdf fcadb dbagfc | cfgdeba efcgbd bcadf dgeaf
+feadcbg egfba fg begfdc gafd debfa geabc bfaegd gfb ecbfad | cbagedf ecdbfag dfebcg gf
+ea gbdeca egbdc bdcea aebg cbadf fdeacg cedgfb cedfgba aec | ceabd gbdaec ebag fadecg
+bedca dcbaef dfcb feb baecdg gbacfde afegc bf ebfac ebfadg | ebdca gcdbea fbe geacf
+bafgcd dcb cgead dcgbef afcbg db adcgebf bdfa gbecfa bcadg | gcbadfe agbdc gbafc bcd
+cg cga edcfab ceadbg acdgfe gfcd gafce eafcd egfab dfbgeac | efagc bfeagdc fdebac aedbfc
+ebg dafeb cdabg agdcbe geafdcb agec gfdbce bgdfac eg gebda | ebgad ge bceadg dbfea
+cfdeg acebdg abcfdg befdg bgf beadg fcbgade fabged abef fb | decgf bfae fcdge fgdeba
+gdfeab feadc abgc ebgdcf dcgbaf acfdb ba bafcdeg gdbcf bfa | cbdfa fbegda gadebf afdec
+bfecdg dbf fgbce gdefba dbec gbfeac db cgdaf gbdcf agfdbec | febcg gcbdf eafdgb bfgec
+caebg gdcfa fedcabg dce dafe cfbdag de egdac fgbced gecadf | fcgebda cgfad edc gbdcefa
+edcgab dcfeabg dfbga afbdcg bdfe egfab deafbg egb eb feagc | badfeg bcgead eb abfdg
+bc geacbf gebca bdgafe fbceda bce dfacegb degca cbgf abgef | bgacedf bcega gafdeb cgabe
+gfdcaeb ceagf cgf dcag efcbdg ecadf cg efbag gdfaec bdfaec | eafgc cafeg gc dgcbfe
+fdgcab bdgfc dcfgeab daefgc fgbdea bfgec gdb db cbad fadcg | gdb bgd dfcag bgaecdf
+ebca fagedc cb bcefgd cefda acbfd deacfb bcf bafdg ecgfabd | cagedf fadec fdcae fdeca
+dgacef deacb dac afgdecb fdcaeb dabeg acbf bedcgf ca debfc | bedag fgdcea acdbe bgead
+bdcaef cdegfa egfdba cfd bfec egfbacd cfdba fc cgabd bafed | daebf bdacg cbfdgea bcdfa
+ac cab ebgfa fcedb cbedgf dbcfea gbdfeca ecafb fcda gedbac | baefg ca ca bdcfe
+afcbge fedbca fagebdc abdce dacegb aefd fcdbg fa cfa cabdf | af af beagfc abecd
+edacg afdgce fcagedb degcb deb db faegbd abdgce bacd gfbec | egcdb dabc dabcge edb
+cgdab efabdgc bae bacefg efgbc fcea fbcdeg bgeac ea aebfgd | ae cbgae dbfeag fcegb
+acfed eg dgae fbceda gce dgface ebafgc fgdcb cedgf fdgcbea | fbcdg fdcaeb caegdfb cgabfe
+dcgab cae ae eabgc gedfca defcgb fedacbg efbgc bfea eacgbf | cgdab ebaf bdcgfe eac
+gafbced ceadfg gabfc ae cgbfae febcd cefba cfgadb bgea ace | fbdce eca bgafc afgdcb
+bgd edfab acgfbd dg gdac dbfga bcgfa gdbcafe bdcefg ebfgca | abedf dafgb abgfce fagbec
+adbegf bgace gdfae afc fbcaed gcdf cf faecgdb gaefc cdaefg | cfa ceafg abdcfe agefdb
+fdgcb adg cbefdg cbfadg adgcb dcfage ga cgbfdea bfag aedbc | gdfcea fecdgb acbgd bgdfc
+febgdc gb fbecd fbg cgeabf agfed bdfeg bedcaf fcgdaeb gdcb | febgd cfabed cedbf bdfge
+dbgcf dfg dgcafb bdcag df efdacg dcabeg facegdb adfb gbfce | fgcdb dcfgb agbdcef gbcef
+abfdcg gbfea ceabgdf gedcbf ec bec cgfdb bgfce ecdf acgebd | cagdfb ebc dfgceb ce
+bdafc fbaeg dcagfb cgdb adg dg daefbc bdgaf dacfebg efadcg | dbgc bcfad aegfb adbcf
+cdagfe cdegb dbe defcg gabec gfdcbae bd efbdgc bcadfe dbfg | eacfgd db db dbe
+fbcegd bdfgc cf gbecafd gdcba fbc fgdeb cdef gadbfe acbefg | gdbfe gadfeb dbgfc bdfgec
+abcegf cbfad eb fabcedg efabc ceb gfbe degafc gfeac abgced | agbcde ceb gfbe beacf
+fgdc gbf fgcbda cefbga facdb gadbe gf bafdec gbdfa aebgfcd | fbg gdcbaf efcbad fgaecbd
+ecadbf dcfbga bcdgeaf afgc adgcb bcf fbgde cf dgbaec cbfdg | eafbcd cf abcdgf dfebg
+beafg edfgba fbacgd fcbeg ebcagd bdagf ea bae efad cgbfdea | afebcgd cfgbad efcbg bgdeaf
+faegcb gefdb gdefcb dfcga dbfga fgadcbe ba bfeadg adeb abf | bfagd fgbedc ebfdg gfcdbae
+adebc gacdeb gba aegbd cgefba ebfgdac acfdeb agdc ga bfdeg | ecadb dbefg fbgcae gcdafeb
+gf dfbgec cdbef dgfb gcebdaf efbgc aefdcg bdaecf gef caebg | cdafgbe gfe cgbfade fbcge
+cba ebfga ac agbdfec becgd cabdeg fdebgc daec gfbdac bagec | ca ebgcd ecbdgf fgdbce
+gcafeb dbceg edga bcgdaef de bcfaed ced abecgd becga dcbgf | agbcfe aedg ed aegbcf
+cbeg bcafg bgdaf ecgfba agc beafc ceagdbf cdegfa cg dfecab | gebc debcagf cg gc
+dbaecgf gacbf gce bcedag bcgef dfceb ge efbdac degf dcfgbe | ecg defg ecfgb bfecd
+ga gfceab bgdeafc acdbf bgcfe cbedga fgae bafcg fecbgd gba | acgfb ebadcg fcbad bcagf
+cadb edbagf gdcbfa dgc cdfga adfbceg fagbd fgeca dcbegf cd | gbfedc cdebfag debfcg fagbd
+fbcgea bacgedf gbce cdfagb eba be gbcfa egdabf cbafe acefd | eacbfg abe cegfba ecgb
+bfcag gdba ba adfegbc eafbdc bfcdg ecagf bac fbgcad gcdfbe | bgadcf ebgcfd acb gbfced
+ced geabcd dcaebgf fgaecb begac cadb cd cgdefa bdgec dfbeg | beacdg bdaceg fgcaedb cbeagd
+gdacfb bfdgc gfaec ebfdcag fegbc cfgedb acdfeb gedb be cbe | bgfec be gbed egcaf
+efcda abf gfdaeb gedcbfa abcdg bf bcdfa cfeb eagfdc caefbd | gabdc fecdag bgdfeca bdegaf
+efcab gefcadb dcbge cagebd gfdb feacgd efd bdcefg df befdc | fbdce acfeb cdebg fd
+gafbecd dacg efgbd dcfge ecdaf gcf cedfag febcga cg dbcefa | fdaebc gc afgceb gecfba
+ebgcd fgba dbcgaf cgbad gac gdbceaf cfdba cgaedf afdceb ag | abgdfec cegdb cag fbag
+ecbgf efac bgade bacedgf begca agbcef gbfedc agc fcabdg ac | aefc fbcadg afbcgd dgcaefb
+fab cafgbe face acgbedf eagbc bdgafe egcabd fbgca gdbcf fa | cfbgdea acbge cagbe fcea
+fedac ec gced bacgfe acdbf begadf gedbfac cae fdaeg cgdaef | dfcgea dafge aefgdb fadge
+gbcade fe afbgc cedfga bdfe gbfae fae fdbega dgbae cdbagef | egabf aef abgef efbd
+fagebc fad dcfab acdbfge ceabf egadbf edfc dbafec fd gdbca | bafec dbgafe fd eafcb
+afg ecdbag fcage dbgefa abefc gfdc fgcbdae fg fdecga gdeca | deacg fagdce cefag edfgca
+badfc gcfdea db fedcgb abde bcd fdecgab deafc facedb fgabc | fbcgde abgcf gabfc aedgcf
+bdaefc daecb gfcad aebg edgbac gbfcde bg cbadfeg gcb dbcga | bega cfabed cedba bgae
+afdbec ge aeg cdagb egfb cebadfg egbda agfdeb facdge efbad | fdbeac agbdc ega cagdb
+cfe eagfd bacfg egdfba edac gefca gecdafb eacdgf egcdfb ce | cfgbde fbgca efdbga daec
+abfcg bdcegaf ecbfg bafecd gcda dfcab cagfbd edgabf ga gab | dacg gacd gacd bfgca
+egbac ec cbdgfa ceb agdcb bagedc cdbaefg gbaef fcbade decg | dfacbg bafge ce efbag
+bd bdafce gcdfe fdcbg bfgca dfbceg dbf gecfda dgbcfea gdbe | edfcg fcdge fbcgde gcedf
+eafcbdg eagbc gcaebd cfegab dfeca bgfedc cfb befac bfga bf | bgdace bacfe fb feagbc
+bgedfc bgafedc adc bafec gcdeba egbcd dbeca gcafbd gead da | gdefcb gecdab cbfged gcbde
+bgec eb fbgea aeb ecagf dabgf cdfage bfdcae cebgdfa fabceg | cgadef begacf afgbe egcfdab
+fe fdecabg ebcfa bgcaf ebcgfa aebdc begf fcedga fdcbag aef | bacde fae fegb efa
+gdefbac dgfecb afdg gcfbad gcd ecabg gd afcdb bfdcea gdcab | acdgb dg dcg dafg
+bcaefd aceb dagecf ea cgebafd eda ebgdf faedb dbafc bgdcaf | facbdg aecb aebc gdefb
+cafdeg egcfb ge afedcb egba acgfbe cebadfg gbfdc baefc egc | ebga ge ecg aecfb

2021/08/sample.txt

@@ -0,0 +1,10 @@
+be cfbegad cbdgef fgaecd cgeb fdcge agebfd fecdb fabcd edb | fdgacbe cefdb cefbgd gcbe
+edbfga begcd cbg gc gcadebf fbgde acbgfd abcde gfcbed gfec | fcgedb cgb dgebacf gc
+fgaebd cg bdaec gdafb agbcfd gdcbef bgcad gfac gcb cdgabef | cg cg fdcagb cbg
+fbegcd cbd adcefb dageb afcb bc aefdc ecdab fgdeca fcdbega | efabcd cedba gadfec cb
+aecbfdg fbg gf bafeg dbefa fcge gcbea fcaegb dgceab fcbdga | gecf egdcabf bgf bfgea
+fgeab ca afcebg bdacfeg cfaedg gcfdb baec bfadeg bafgc acf | gebdcfa ecba ca fadegcb
+dbcfg fgd bdegcaf fgec aegbdf ecdfab fbedc dacgb gdcebf gf | cefg dcbef fcge gbcadfe
+bdfegc cbegaf gecbf dfcage bdacg ed bedf ced adcbefg gebcd | ed bcgafe cdgba cbgef
+egadfb cdbfeg cegd fecab cgb gbdefca cg fgcdab egfdb bfceg | gbdfcae bgc cg cgb
+gcafb gcf dcaebfg ecagb gf abcdeg gaef cafbge fdbac fegbdc | fgae cfgab fg bagce