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2023: Day 3 (part 1 only)
This commit is contained in:
parent
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commit
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3 changed files with 188 additions and 0 deletions
38
2023/day3.rb
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38
2023/day3.rb
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NUM = /\d+/
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SYM = /[^.]/
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def part1(input)
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part_numbers = []
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input.each_with_index do |line, i|
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offset = 0
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while m = NUM.match(line, offset)
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start = m.begin(0)
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finish = m.end(0)
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offset = finish
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span = [0, start - 1].max..finish
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#p i.to_s, m[0]
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above = input[i - 1][span] if i > 0
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below = input[i + 1][span] if i < input.length - 1
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left = line[start - 1] if start > 0
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right = line[finish]
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#p [line[span], above, below, left, right]
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#p [i, m[0], start, finish, line[span]]
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if [above, below, left, right].compact.any? { |x| x.match?(SYM) }
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part_numbers << m[0].to_i
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end
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end
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end
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part_numbers.sum
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end
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def part2(input)
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# todo
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end
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input = ARGF.readlines.map(&:rstrip)
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puts part1(input)
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puts part2(input)
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10
2023/input/day3.sample
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10
2023/input/day3.sample
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467..114..
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...*......
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..35..633.
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......#...
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617*......
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.....+.58.
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..592.....
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......755.
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...$.*....
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.664.598.
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140
2023/input/day3.txt
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140
2023/input/day3.txt
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@ -0,0 +1,140 @@
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.......................153..988....502..842.........588.....441.468......481..........314...715.57............................163..992..512.
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........914.........#...617..201.........271.....671......52..898................847..........*230..215......393..%751....537...............
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490*..........................350...*...664........806................../..*...514.31...=........../25....%.................83..............
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435.................688.8..............$......330.................474.......9.......736...........*...787........336...245...446.....916....
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...*.*....920........%................666..90.....786$..221.......*.....173.%.......*........@..25.98.....186#.......................*......
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..................................195..543.../.......75..............887.......43...396..................................=.............813..
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........$.735......590.998.............=...862............228......................*................+...%...........979.....500=......*.....
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......597..........=...+.........61..................878../....596......*........542../815....567.834..672.=378.....*...&.........#..981....
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...................................*618..998.........*...............716..........................................495.682..62..945..........
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...800*.............246*.........370..............................-.........*....639....*.....362.368.......818................687..........
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.........$.173............383=......*........389......................273....785.....514....=...*....*...........@..............*....446*833
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........#.................305.......318.608..609....*..............448......@...959*604....16*...../..............131............=..325.215.
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.980...85....*48......883.............@..............663.................128..................944.420...203.....................381.........
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..........887............*....434........725................958......367......178..........................@.779.........................986
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...........960.....*....................80.....#..%....456..824....*...138...939.........362*......488...572........663..&..........*.......
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.......+.....*...645.............%12.....................*.........692...............922.....902..@.................*........27..542........
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...792..242.702.........256..668..............613*479...329...................134#....*...................*545...375........................
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.......................&......*.............&..........................298.........696.................844.....=....................184.....
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......886=..................129....187.......850..*.....&................*...............358...130............500................@.....*....
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.......47..........*....826.500..48......665..................*.................*.377....#...49.......$.....................................
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.196...*..........815......*..............*.....*...........571........297*...153.*....416...............+.....73...126.............111.....
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.......164............547#................69.503.743............108...............22......../70....36.....470................516....*.......
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....................................634................&.357......*...................275.........+................592......%....52.204.....
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....#943....843............544.......-.....96*139...640........694................@.........558......................*...........*.......104
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.....*25....=..780.74...........457....%..%.......806........*........&........*...........+..........53..*..........%.............*........
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..99.....697...$....+................601.757.600...........751........801......795..998....362...........431......&............797.860......
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....*...................50.579...............&...-.878.....................586.....*............587..216.......321...783....................
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...859.................@.....+.317/............34../...499.....904.991.......$....938......337@...*..#.................*.............130*312
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............707.266.....................156..9............*.......*..............................880.......787.........102..................
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.........*.....*................938*743...*.*..............195.........425..........869*.....448..........*.....73.689.....48..469..........
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......568.164....938........................964.......899......641.....*........930.............*...891....104........*...&.......*719......
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....................*..................#...........+..-...381......36.749...744..*......659...935......+..............694.....370...........
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........174........460............+..435........893........%................+.....500......$.............#......397.............*...549.677.
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....981.*.....&355.....960.......963..................543#.........................................971...483....%............428.....=......
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354..*................*.....752..................69........676..54.......531*......78....877..-950....%............346...........699........
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......265.....#......959.................846.......*...93............263.....974....=.......*............&........................*.........
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............857...........527............../.......29....@.846.......*.....................768..134&...571..........302...........512.......
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....$254.........397......*............./....................%....128.........*984.....693..................991...+...*.@....@...........228
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............335...*.....751......626.699............$118..............991..............$....................*...327.93..508.301......348....
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....387........@.266..............*.......................-...........*.......%...................260....756................................
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....*.....817..................726...391.....112..........273..997...197....667......./......932*....$........290...............711......560
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...488.....&....961.....170.........*..........*................*.........*........883..825......71..............&...215...........*.766....
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...............+.........#....$.....600.&.......674.42.................730.998.........*..................139.........*.........461....=....
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...#97...........817........86..........155..............759.....200.............827...163..........................499.....................
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.....................#.........................793*722...........................$..............&....725&......................442..........
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.............812....613.....892..........................464......430..%.....462.....%.......599.............555..204....219......*637......
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...544........./............&...............................*.......*.840.......*...994.797........52.........*....*..........739...........
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....=..................................713.304...161........186.................824.......-....=....*.......118.844..113......*.....872.....
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......................75.963......244.....*.....*.......466..........590....................208....363...............*.....872..............
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.............391.....*...............*.......843......#..........184..-.................................441......448.597....................
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979......416......114................306.%.........719.....792......$...........................#..........*..............603.989.914*......
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.........-..................975..670.....890...621...........*..........145..659...369=.@978....935........938...............*........107...
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................259..%632....=...................*......173...871........*...................4..........*..........&108.........*281........
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...............*................326.....732...528.../....#.............698.............316..*........188.888.................918............
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..512........507...............*...........*........440.........................938......./.254..313...............................422......
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....*............300.........430..354$.....884.701.......%....368............../....@480...........*..142.............305...145.61......106.
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.363..939.639..................................$...../....704.....835@...-776....................655.........645......*......*....*892......
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.........*..........*338................../........741........................113..895...............%..403.....*..40..992..2...............
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.................986...........927..%449.17............................182....*.....=......870......899........665.#.................949.189
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...841.........................*.......................................*...849...........=....*295.........420..............441.882.........
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......$..+.............124...993..........*...........*................365..........79.364................*.............414*.....-.....360..
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........159...........*...........457$....199......960.967...&...................................+......181.....+.......................*...
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.....................859...................................962.............912....#......330.....168...........904.....958*....213*583..49..
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........%.........*..........421..340*196..892.........409.................*....488.645...*..........#......................................
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.....802........116...........*...........................*...227........791.........$....203.....963..418................599+..........744.
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..............#.....-966.23.94...58..283...........476....722.......730...........................................@..700.......%788.........
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240%..........844..................*.-.........486............307............#49...288........&.329.............61..*.....................95
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.........#............148..446...........402/..........256.......................&..........573..*...................319.......763..........
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......936..............*...%.................................-....709...371...955..352............553.629....445..................*.........
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.121......445.347...455.......=....#....92..................367..*......*............@........881........*..*....267/.....-89......843.*782.
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......519.=.....*.........401.996.452...-.......-387.886.........982...149..910%..........81..-.........653..407......819.......@...........
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.....*.......950...448#....*...............&691......$......................................*....538..............681*.........560..........
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.....25....................60............*......................304*863...../.............103......*.........811..........923.......426.....
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.800..................../................974..............255..............958....738..............465.........*......181...+........./.....
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....*.....-......824....782........90...........+505.......*....903...................544.712.826...........800..........*..................
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...408..123...-.........................................557.......*....................@.....*....561.743............310..642...97*475......
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...............900.#494.....915.624............../..............508.....431.*500.........986...../......=....187........*...................
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...........................*......*....#741.@957.979.*................/..%................%.............................218.805......505*...
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...........................59.....595.................948...+........885.....*808...554.........70......827=.............................690
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...95........+......455.....................................776...........795......=..............&...$........349...............621*80.....
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...*....../.793..$...#.....................842..........898.........729...................698.......273...704...*.......451..%..............
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.......340......911......865.....876..........-...........*...%......*....676*498..424...-.......=.........*........241..#...967.......323..
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........................-...........*271..578...........734..8..692..435....................698.548.................@...................*...
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.....=......*..................131...........=..=..............*.............523.659...221...+........................468..263..395.408..757
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.....236....661...565*...........#...............228............287...448.......*......&......................=.........#.+........*........
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......................982.................$..........403*317.............*103.................454...#...311....588...................105....
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...72...............................246..991...../...........12................%.........271...=....668.................................*...
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.......348...259......$..../384.221...............873.......*.....560....&...686............*..................241............763........884
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........*...+..........848.................=........................*.....76......*....889..417.404...............&...538.663..=......61....
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.......446....948..805.....615.....303+.372..........893.......945...849.........861....*........*...187.980...&....../...........838.+.....
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...453...............*....*.....................357...../.........+....................506....129..@.......*..633.822............*..........
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......*188........495....732............635*.....$............219........65....475................811...231..........*..332%...212..........
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.................................*..........575.....-....591...*...420.........*...............................897.317.............165...762
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.............764..410.............438....*..........588....*.245..%......*.....468..........32..-714...456.........................*....*...
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..............*.......................516.552...366......416........166...552.................*.............../..126.........396.386....921.
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.......&.............67&........468................*.............................403.221.......433.....411..299..........457*...............
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...........................*............*799...........*.....118........788....689................$....../702..493.......117............%...
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.................337..496..504.......................519............#..........=....744........782...................625.*.......499.....576
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.......459..%..............................................28.....398...............*..............*19....#935.........$..845......#........
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.............707.....................992........289...481+...*..................3..234....822$.......................................#......
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..513.914*.........161......664.....*..........@..............922......$.........*......................330..............@...........798....
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.....*827...........907....844.............684..........@..................................*..263............../....8..............=...*....
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835........$...88......*.........308.........*.....161.....621*327..-184....333.........@.473.....205..................................872..
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...*....340.............744........-.........961....../........................*449...740........*................867.427..251..............
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..988........@...................................................765..........................743......228...............*........942.......
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.............125..#...........406.........%.....837.................*.....609*.........%..........644...=..465*643....880..509...*.......453
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....544..........480.............=.........274.....*..148..583...821..........880.....492....535...@.......................*............*...
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.....$.......306................................287....#..*...........647.....................$........-......166.714....942..675.....657...
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................*....................673...780...........620..........*.........&..........=......997.465..........$.............*..........
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.456........920..855.913..............*.../.....325*316.......6.......208....486........715.....=...%.............................67........
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......*178..+.............686.59....871.................$......*.............................149..............238........634................
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....56.........385...648*...............*968..&.......732.....921.467........*.........479.........695*284.../..........*...................
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............56.....$.....675..746#.............384.................*......451.709................................%..939..265.........290*891
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................501.......................620.............900.......825.................258...387......21*40...273...*......................
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.......532..................................*....*....956....=....................711.........&.....................415.307....411......9...
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..............................314../......692.214.718.............762*461.....844*.....&.............973.675...80.................*143......
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...........365.......460.329.@......476....................................*..........926.....799...*.............-.........................
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..............*.297...*...*.........................753........700......473.765..............*....967........111.629.932....125.............
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.......+...261...&.......786.283....695.....486.....*......565.+................536...../....380....../124..%........*.........%............
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......339..............*..............*....*.......996.......-.....+..............*......752......................@...............-.........
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.......................716...........551.631........................279..555.....373...................691......114.215............515......
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