initial commit

2021/Day8/Day8.py

@@ -0,0 +1,21 @@
+if __name__ == '__main__':
+    with open("input.txt", "r") as f:
+        data = [x.split("|")[1].strip().split() for x in f.readlines()]
+
+    for d in range(len(data)):
+        for entry in range(len(data[d])):
+            data[d][entry] = "".join(sorted(data[d][entry]))
+
+    one = "cf"
+    four = "bcdf"
+    seven = "acf"
+    eight = "abcdefg"
+
+    entries = 0
+
+    for d in data:
+        for entry in d:
+            if len(entry) == len(one) or len(entry) == len(four) or len(seven) == len(entry) or len(eight) == len(entry):
+                entries += 1
+
+    print(entries)

2021/Day8/Day8_2_Reddit.py

@@ -0,0 +1,143 @@
+def AOC_8_a():
+    with open("src/input8.txt") as file:
+        lines = file.read().splitlines()
+        lines = [x.split(" | ")[1].split(' ') for x in lines]
+        total = 0
+        for line in lines:
+            for item in line:
+                if len(item) == 2 or len(item) == 3 or len(item) == 4 or len(item) == 7:
+                    total += 1
+        print(total)
+
+
+def AOC_8_b():
+    with open("input.txt") as file:
+        lines = file.read().splitlines()
+        lines = [x.split(" | ") for x in lines]
+        total = 0
+        for (lefthand, righthand) in lines:
+            lefts = lefthand.split(' ')
+            digits = fill_dict(lefts)
+            digits["2"] = find_two(digits["1"], digits["len5"] + digits["len6"])
+            digits["9"] = find_nine(digits["4"], digits["len6"])
+
+            digits["len6"].remove(digits["9"])
+
+            digits["5"] = find_five(digits["2"], digits["len5"])
+
+            digits["len5"].remove(digits["2"])
+            digits["len5"].remove(digits["5"])
+
+            digits["3"] = find_three(digits["len5"])
+            digits["6"] = find_six(digits["5"], digits["len6"])
+
+            digits["len6"].remove(digits["6"])
+
+            digits["0"] = find_zero(digits["len6"])
+
+            del digits["len5"]
+            del digits["len6"]
+
+            number = ""
+            for item in righthand.split(' '):
+                item = "".join(sorted(item))
+                for key, value in digits.items():
+                    if (value == item):
+                        number += key
+            print(number)
+            total += int(number)
+        print(total)
+
+
+def pd(dict):
+    for (key, value) in dict.items():
+        print(key, ": ", value)
+
+
+# 0 is the last number to find, and is just the last remaining not used string
+def find_zero(candidates):
+    return candidates[0]
+
+
+# 2 is the only digit that shares a unique single segment with 1 (5 and 6 also share
+# a single segment with 1, but they're thus not unique) among unknown digits. We need both len5 and len6
+# to check for this uniqueness.
+def find_two(segment, candidates):
+    az = {x: shares_only_one_segment(x, segment) for x in candidates if shares_only_one_segment(x, segment) is not None}
+    return least_frequent(az)
+
+
+# 3 will be the only len5 segment not assigned at this point
+def find_three(candidates):
+    return candidates[0]
+
+
+# 5 is the only digit that shares three segments with 2
+def find_five(segment, candidates):
+    for can in candidates:
+        if (shares_x_segments(segment, can, 3)):
+            return can
+
+
+# 6 is the only digit that shares five segments with 5
+def find_six(segment, candidates):
+    for can in candidates:
+        if (shares_x_segments(segment, can, 5)):
+            return can
+
+
+# 9 is the only digit that shares four segments with 4
+def find_nine(segment, candidates):
+    for can in candidates:
+        if (shares_x_segments(segment, can, 4)):
+            return can
+
+
+def least_frequent(dict):
+    list = [value for (key, value) in dict.items()]
+    lowest_value = min(set(list), key=list.count)
+
+    for key, value in dict.items():
+        if (lowest_value == value):
+            return key
+
+
+def shares_only_one_segment(segment, candidate):
+    total = 0
+    for a in segment:
+        for b in candidate:
+            if (a == b):
+                total += 1
+                shared = a
+    return shared if total == 1 else None
+
+
+def shares_x_segments(segment, candidate, x):
+    total = 0
+    for seg in segment:
+        for can in candidate:
+            if (seg == can):
+                total += 1
+    return total == x
+
+
+def fill_dict(lefts):
+    digits = {"len5": [], "len6": []}
+    for num in lefts:
+        num = "".join(sorted(num))
+        if (len(num) == 2):
+            digits["1"] = num
+        if (len(num) == 4):
+            digits["4"] = num
+        if (len(num) == 3):
+            digits["7"] = num
+        if (len(num) == 7):
+            digits["8"] = num
+        if (len(num) == 5):
+            digits["len5"].append(num)
+        if (len(num) == 6):
+            digits["len6"].append(num)
+    return digits
+
+if __name__ == '__main__':
+    AOC_8_b()

2021/Day8/input.txt

@@ -0,0 +1,200 @@
+dbc gfecab afcdg dfebcag bd dgbe bcaeg dcefab ecgadb agcbd | acdgb gbcda gdecfba bacge
+bacdegf aefbdc ebf fdbcag edbfa gdaeb acfdb cdegbf face fe | ebf ecdabf fcbad afcdbg
+cabgde gd becgfd dgfe cebgf gfdeacb fdbac bcgaef bgdfc gdc | cbfad dg dgef ecfbdg
+adecgf egfdc cgeadb adbfce dafg bcfeg dge dg fadec dcbegaf | dg dcegf cdgafe gbacfed
+badeg gdbfcea acgef fgdc bgcaef cd ebcfda gadce edcgaf edc | dce efcga dbgea dc
+bgfec dbfgec ebgafc afegcdb fca af cgdabf aegf badce cfabe | caf ebacf bafgec cbfeag
+begacd bd cfadbeg fbecg begfd bgd cdfeag gbaedf fdba agefd | cbgfe fdab efbdg bd
+bg gfdebc beg gabd fcbae fgaeb afegd gafdce dacbfge efgbda | gdba dfgae dgba gb
+cfd edcfbg abfcg gfdcb gbcefda dgcbe defg df acebfd caedbg | agedcbf dgbfaec gbfecd cdf
+bdcag acgebfd eac ae bade abcdgf bdacge bcgea aedgcf efcbg | cfdagb degacb eac edab
+ga ebcadgf gdaf bga fgecb dfabcg adcfb gadecb fecdab gbacf | fgda gdaf agb gfda
+gbcdaf fabdceg gbe ebfgad bfdga eg cefabg fdge adegb cedba | ge fcaedbg ebg aecbdfg
+ab bdeag gbdefc cgafdb fgedb agb befa bagfdec ecgda agfedb | ab aefb abg ab
+fgceab fcgdb fdcebg cbf gafbd cegfd bced cb cadfge cbdgafe | ecbagf cbfdeg cb bc
+fgb eafdgcb cefg ebdgac fcbged fbade fg gbfed gbecd fcabdg | fg eadfcgb fgcbda gedcb
+ecgfda faebc cb fadeb adecbg edfgabc bfgc cab gecaf ecbfag | fcgb bca gbcf cgbf
+gfaed cg cgab abdcf fabcgd gcfda fgc fdgacbe cbdaef fcebdg | fgc cfdageb cbfgad degfa
+fbacd gedfac fadegbc gbf degb ecgdf gb bdecfg gcdbf efbcag | cgedfb gb bcdfa cfdagbe
+dceg deacbg acfbeg egdafbc ebfda dc bcd cgabe gbdafc dbace | cged fabegc febad ebgcfa
+gbdcae cfgade dc dgbface fdage cbgfa adc gdafc dcfe gbdaef | fedc adgcf fcde dgacbfe
+afdgbe cgfabe dcgeab aef feacb fbgcade bgace cgef bcafd fe | ebacf abfdegc dbfac facgeb
+fbeg dgfecba cfgabd eafcb gb edacg gecfab aebcdf ebcag gcb | cfadeb gecda bg gb
+bfcaeg gd fbagc fgad fgcaedb fdgbac cdaeb dgfecb cagdb bdg | cbfgda dg afcedgb egfacb
+gd dcafgb dacfbe edbgacf gfbdc fbceg dbg dfag bdfca begdac | aecfdb eagdcfb fdcbgea fgdbc
+gf dfgc ebfgac bfdace gabfd adgfbc acbfd ecfagbd bgf aedgb | dfgc fdcg gfb gbf
+gbdae ebadf dbcfag acfdb dfec feacdbg geafcb dcbafe fe fae | efa bdcfa eaf debacgf
+deafgc fbgedca gfd dcga dcgbef aecfg dg agfebc adgfe dfabe | dgf badgcef fgace cabefgd
+badcg bagdce bdafgce efgbc df cbgfda cfdbg edgfac fgd adbf | dfcbg df cgbdae bdfgc
+dgabe beagc gbd gfcbdae gd bdegfa bgfedc fbcdae bafde fagd | bcdfge bgd bcage dfga
+adgf adgfce aecfg cdega dbgaecf abcgfe egd egcdfb dg deabc | cdgae dafg dfag afdg
+fbadec afcbg begac be ebcgda dceag edgb efdcga ebdacgf cbe | adfcebg ecafbd debgac edcafg
+cbd dcga cagbf dcafb cd cdebfg dgafcb baefd cbfaeg cfdgeab | fcdab geacbf gfbdce dgcafb
+becd abfdc cgbaf efcda bd ebdcaf gdfaceb bdf bdgeaf cedfga | ebdc fbd bdf fbgdae
+gefacd adcg fedbc cdgfe egd dg dbfega cgbfeda aecfg bcefga | defbcga efcga afgced gdecf
+gfacbd fbcgde cefba efdcga bfgcead egcdf gfb gcfbe bg edgb | gb fdegc gfb fgb
+ag agfdcb egfad fag adefb fdgec bdfgcae acfegd gebfdc aecg | fga ag egafd fcgebd
+cadgbf cd gefbac cdfba fbead cedagb gdcf adc gacbf fgebcda | gcbafd bdcaf gfcd abdfe
+fgebda fd afceb fcdeb fcad cgbed gabfcde dcabfe def befagc | eacfb efd efagcb def
+beaf gfcaebd fdeag dae acdgeb gcdfa dgabef gbedf ea dcbgef | ae aed ae ade
+gb dgeca gecab gcdfaeb ceafb bgc fagb adfceb baegcf gebfdc | fgba bg fecgab bg
+daf gbfda afcedg geadfb fbcdg fgaebc ad dbagefc dbae aebgf | aebd eadcbgf dfa beda
+dcbaef cabfd efgcba cbdgfa aedfg abecfdg ace cbde dfcae ce | cbefag ebcd cdabgf cbfda
+bcgefa bgfcead cd fcbadg bdcga dac gbaed gafdce cfbd bcagf | cbfag acd cfbd bdfc
+dgfcb aebgd gadefc bgfdec cbafgd cgbad egbdafc ac acbf cga | ca ac cabf abcf
+cgaed gafbdec fgaedc ba baegcd edfbg agcb bcdeaf ebdag bea | gfceda ecabfgd defgacb aeb
+cbfag cgdaf dcefab bac ba bdfceg cfgeb eagb cbfgea abcfdge | ba bac gabe cfbeda
+efcgd ecbafdg fgabed edb ebcg adcfb be efcdgb dfcgae dbefc | dcgef ebd becg gdfaebc
+fgedabc dafeb eg ged aegfbd afbecd fbgdc edfgb egaf dacegb | gaecdb cbegad fega fega
+bgfcdae fbcda df eafd gbcaed bdeca gfbac gfdbce bfadce bdf | afcbdeg gabfcde deaf cbeda
+fcgebda fcga bgfcd ebdfcg degba baf bafgd dfagbc bfcade af | afb agfc af cfegabd
+cbfg bfd eabfdg facbdg edfcgab bf fcabd aedcf ebgdac badcg | eafdc bdf bf fbcg
+fbdgce eagbfd dbacfeg dagb geabf cdeaf ebd bd fgbcae afebd | defac bed edb db
+aegcd bad gdaebcf cabfg db ecbd gafdce gcabd gbcade faebdg | dab dba dba cgfba
+ecdba bedacfg cdgeba dagcb bdge gdbfac fcadeg ced de acfeb | ed badfgc beacf bcgdafe
+fg abdeg fgebdca agdceb gfbd gdfae fga cdefa efagbc febgad | fg bgaefc gf bgafcde
+beadc gcbfed fdc bacf fc cbadefg feadc dgfea dcbefa dcgeba | cdf gefda dfc fbca
+bd bgcedf decafg gafcdb acgdf agbce bafd gaefbcd cdb acbdg | fcdga afbd cbfdeg cafdgb
+dabe bgcda egcdb fcdage dcebga bcfge dafgebc gdafcb ed ecd | ebad deba de gcbde
+ga gadcb ebcfdg egbcd agebdc eagb afcedg dbfca dfceagb dga | dabgc ga agd adbcg
+cbfagde ecdgf eabgfc fbd egbdf fageb edba dacbgf bdaegf bd | beda deab abgfe cegfd
+gcdfa gfea ef bdacfeg aedbc efc gfebdc adgbcf fecad aefcdg | feadc fe efc fgcad
+gdcae fga af acegfb fbda gfead edfgbc agdfecb dbgafe fdbge | fabd gfaed efgbd dagce
+afdebg febc cdbae abe eb dbfcea dabcfeg aecgdf dabgc dafce | cefb cedgaf eab acefd
+fgc dcabg gbdefac dfeg ecfdgb bfgcd gebcaf beafdc fg edbfc | cdfeb fcagbe fgbdace febdc
+aegfbd gacdeb fdeacgb dea dgcefb faeg bdfac dgefb ae debaf | debfg dea ea ead
+acgedb cfgae egfcbda fdeac eacbfd fd bdagfe dabec def fdcb | fed fd fcbd fde
+dba bgcfde da cdaf acfbgde fbgdc fgadeb dcbag agbec acgfdb | gacbdef adfgbe bgcad fcdabge
+acdfe cfgdab cdgea afgcebd dcgbae daf gfea fa egdfac bedfc | fa fad fa cedga
+caedg bafgde egcba dabegc agd fecdbga bcfeag fecdg ad abdc | gad cbeag dag cabd
+adfebg fedcagb fagdc gda eadc degcf gdafec ad cdbfge facbg | da aedc cbfgdea ad
+ecfdba dg dgafec gcabdfe fbadg fadcb gbdfca gfd bgefa dgbc | cgbd dbcaf cgdb dbgcfa
+ebacg eb begd dcebaf cdgea gafdce ecb cagfb bfadcge egcdba | bgdaecf bedacg dbeg cbdgae
+ebdagcf cgbea fe agefbc abgdf agfeb egafdc bcef feg deabcg | cegabd ecgafbd ef fe
+cd cgebdfa fgeabd cbd cabed gfbdec adcf abgce eafbd fcebad | efabcdg bcefgd baedc abfde
+acfg gbacfd edgfabc bdcaf dca caebdg dafbe gbcdf ac dfbgec | bgcfed cda dbgfc acd
+agdbefc abdc ecd gfcae aedbf gbcdef ebafdg ecadbf efadc cd | afdeb cde dbafce bfadge
+begad de fged gfbea dbe gbdac ebfgdac efgabd cadfbe fegabc | de dgfe cgfaeb gadbc
+gefdc gdfb gdbcaef deb ebfcd gcebad bd dacefg gdcbef fabce | gfedabc deb gcfade fdgb
+bdec dagcf cefbg bfgace bgedfc edacfbg fgdec fde adgefb de | dbfaegc cedb edfabcg fcdeg
+eaf gabed cabegdf fe ecbgaf fadeg gadfc fcdega cfde cbgafd | adgef fced cgdbafe fae
+fcbaedg gadce abcg ceb bgedf adfbec decagf bc dbceg eabdcg | ceb bgafecd cabg acefbd
+dagb cfgde acgfeb fbgac fcgdb bd dbf cbfagd fcbeda bcefgad | db fegdbca dbceafg aedbfc
+edagb da dab fbdge cgdfbe acegb adfe abdgfce dfgeab bfgcad | abd dab gfbead eagbc
+bdfega dcbgf efcgabd ce fec fcegd agce fegad daebfc efdcga | ec ecf dgacef bfecad
+cdabgef bgdfe aecgb gcfa fc acgebf dcaebf dcbgae cfgeb efc | fc fcga bfecga faecbdg
+dfeac gdfcea fcg acdebf cdge cgefa bdcgaf cg fegbdac bfage | cfg cfg gfeca fegac
+bfad bcf bedcga cadeb bf bceafd bcegfd dbaegfc ecfga cfbae | efacdb afbd bcf fb
+aegfcd bcdeg abcefg gcfea bcgafed bga afbe bagec ab fbdgac | gceba gacbe gbacef gab
+dca ebda bdfaceg acgdb gbcdea begcd efbdcg efacgd bfagc ad | adcbeg ad cbfga cfbgeda
+fadebc gcfbea becgf gf fgc abfg ecgbd dfecabg fcedag eafcb | ebfgc gaedfc bgcef gedabfc
+fadg eafgb gbead bdaec ecagbf dg gdb agfebd aedcgfb cfgbde | bfecdag bgd badce gd
+egcd efadb gacbfd bcaeg ecadgb adc bacegf adecb dc agedcfb | fcgabe degc acd cd
+bedfcag gc fagdec gfabce bfgec acgb befac gfc bgdef aecfbd | cg ebfdg cfg gc
+aegbdf gfabced fadebc gfde ed bcaeg fbgda eadbg fgbacd bde | dbcefag bed afcbged aegdb
+agd fagec cfbgda bfceagd fgeacb cdae gdbef dagef da efcdga | edbgf gda gedaf cdgfaeb
+fgaec eb fcgbd agfdeb cedb fabcdeg egb febcg dfbgec cdfgab | fgbcde dbeafg egcfdba gcbfd
+gfe fdbae ge bfgdc dgfaec cgeb dcfgbe dabfgc fdegb eabgcdf | gebc gceb defbcag afbcedg
+dfce cgbed fbcagd bcdgf ged bdfgae ed bdfceg agebc fabdegc | fcde gde gecdbf de
+dba dcafbg gcdefb fbged dgeab bfegad gaecd ba aebf egafdcb | beadg cfdbage bgafde acdge
+bcgdef cbdgeaf ae fbdace afbde gcdabe gdbfa edbcf fcea bea | dgafb adbfce ea fbdecga
+afdg fgebc fdeacbg fd gadcb fdcgb gfacbd gbeacd acdfeb dfc | fd bdcafeg caefbd dafg
+dfebag defa bdgfa beafg agbcfd eab cbagefd cfgbe ea acbgde | abdcge abe ae fecbg
+ef bgfdeac bdcefg cfdba ecf dgecba gfae abgefc ecbga acefb | debcag afge efag fe
+cg gbfc gabcd bgade dgc gbecafd egdfac dfbac abdcfe gabfdc | gcbad degfabc cgafbd adbgcf
+edbcgf acgbf fbaedc cbfae gfc agcdb dagecfb fg fcgbea eagf | fg adcbef fbeac fadcgeb
+deacg daeb dagbce ecdbgf edc ed bgaefc gecba dagcf abdgecf | cdaeg abcge dec ecd
+fcgadb caged bedc cdabeg dfaecbg befag db dgb eagbd gacdef | fecagdb begad dgb db
+fbcdga fgcad fecdg gcedab bfca adc ac bfdga dbfega eafbcdg | adc cbgade fgcadb ceabgd
+cefdbg gde bgfeac ed begcd cbefg bfde aedcgf cbafegd gacbd | fegbdac gcbefd cbgef bgedc
+bfdagc afdc bagcf gbfdc begcd begdaf beafgc dbefgac gfd fd | fcda df dfac dcbfg
+gcbfe bfeacg cedbf ge bfcga gfe gfecda ecbgdfa bgfadc bage | feg eagb gef abfgc
+bgfec bac abecdfg ab gdcea ebgcfa fagb aebcg caebfd gfcbed | ab ab cba acgbe
+gdbcf cbedg ce ceg abcgde adbeg efgcab bdfegac adec adfbeg | gaecdfb bedga cge cead
+eafcb cfdbe aeb acfeg ab dcgbfe adfb fgacedb ecabgd fdbcae | fbcde aedfcbg bea edcbf
+ebdca egc cgabe fbge cgbfda ge bacfg geacbf afdgec gebacfd | badce cge bgfcea ge
+gdfecb bdge gdf dgbcaf aefbgc bfecg fgdec dg ecdbfga deacf | dgf fedcagb gd gcedf
+agdeb cfdbag gcabd ed dacegbf gebfa eagbdc acde efcgbd edb | ed eagdb de de
+feag cfgbed feacbdg cfgade efcdg fcgdab afd dfeac af abedc | cbagfde dbagfc faeg dgabcf
+cdg efgbcd decgfa dcegb dgbf gd ebdcfga adebc gbcfe cefagb | bfecg dgbf gdbf dg
+gab dfceag gdcb bg gbead agdefbc gcabef acged efdba agdceb | gdcb bgdc edbfa bag
+bgafde afdgc gcafed efgdc ceda gdcebfa gdbacf de gbcef edg | edg gde eadfcbg cade
+gdb egcfadb gdef abcfd dg ebfag gadbef abdgf aefbgc cbgaed | fedgba dbegfac bfeagd gefcdba
+gad bdcag becdg gceabd dceafbg fgdeca fcgab ad baed dfcbge | cfaegdb gda ad gaedcfb
+dafbeg eadgbfc fgd bagcf gedb abdfce gafdb fcdgea gd efbda | gebd fdg gaefcd deagcf
+cdbe adefb ecfgbad bfcgad bacdf agcefd efd cdeafb aegfb de | gacebdf bdce fbcagd dcefab
+cb acdgbe bce cdegabf bgdefa aegdb cdbg acbde fcebga fdace | ebc abfdecg ceb gbacdfe
+cg fcedg edfbag ceag fdbec gdc faedcg bdcefag gbafcd dfeag | geca dgfacb cgd cg
+bcafde defac dcage dgfbce gafc cgaedf cgd cg fgcedab gdeab | cdg ebadg aedgcf fagc
+bdec dagbf ecagfb decbfa aefdc aeb dcegfa adefcbg ebadf be | cdbe gfadb eadfc dcbe
+bcgeda fc badfe gbfdaec fcge cfd bedfc cedbg adfgbc dcgebf | cf ebacgfd fgce fdbceag
+gd fgbdea dbg badce gdcab fcagedb fbacg beacfg cgfd dcafbg | fcdg gdcbfa dbg gdfc
+cag cdfa cgade edgcbf fcebga begfcad gfdcae egabd defgc ac | ca agc fgbace gac
+ecabf geacfb eabdcf dec cd bgecfda gfdbce edcba cdaf adgeb | ced aedfgbc dc gbeda
+fbdac ea cadefg fae beag facbe bfgeacd cfdegb bgfec gfecba | agbe ea bafce egbdcf
+bdc dbega abcdg gbcfa dc gcde cgbaefd cdfbae eagdbf ebgadc | adefcb agcfb cdb gced
+ceb ce debfca abgdfe bdaeg cabegd caeg dbgec dcbfg bdecgfa | ce abegd gdfcb fcbdgae
+cafedgb dgf bcfd cgdfbe acedfg gbfed agedb aecgfb bfgec fd | fdgbec feacdg df bgcfe
+ef abgfc cagfeb gdebfc fbae bcadfg defgabc feg gefac gceda | degac gfbac gabfc gfcea
+bfdeca bd eabfgc degbcfa cgdb gefbc dbf ecfbgd gaedf edgfb | dbfge bdf egbfca db
+fac cbdfg eacfbg gaecfdb bacfd bfeda acgd ac gbfecd cgfadb | dagc ac dcga bedfa
+egfbca aegcf gdcfab fdc adce fcedg cd cfgead fdebg cedagbf | dcgfe fdgbcea aedc cfebga
+da bfged afedcb gcebdf gefda fedbga edgbfca gdba eagfc eda | ead dcfebg defcgb efgbcd
+adefgb ecgf gcedb fedacb bec fbecdg cdfaebg gedfb gcbad ce | dcbfeag cfbged efgbad bcdfage
+dfec gcd agdbe bdafgc afcbge bgecfad bgcde bgfce bgedfc cd | fbecag beagdfc cgd cedf
+edbc agcfbe adefg cd defca gfabdc cad dgabefc dfebac bceaf | dbce ebdc febcdga cdgbefa
+ecdb eb acgebdf ebf dcfebg bgdefa fcgbd gcdbaf feacg cfebg | bef ecfbg egdcbfa cdgfb
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+fgbdc be egb bcdefag ceba gedbac egcda dcfgae debcg gbdaef | ceba edgac eadcfg bcdaeg
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+dabfegc dfegb cbgf cf fdebgc dcbaef gcfed adecg fbdgea fce | cf gbfc fgcb begcadf