diff --git a/19/19.py b/19/19.py
new file mode 100644
index 0000000..77e2555
--- /dev/null
+++ b/19/19.py
@@ -0,0 +1,86 @@
+from itertools import combinations
+
+
+def readInput(fileName):
+	scanners = []
+	with open(fileName) as file:
+		lines = file.read().splitlines()
+	for line in lines:
+		if line == "":
+			continue
+		if line.startswith("---"):
+			scanners.append(set())
+			continue
+		scanners[len(scanners) - 1].add(tuple(int(value) for value in line.split(",")))
+	return scanners
+
+
+Point = tuple[int, int, int]
+axes = {(1, 0, 0), (-1, 0, 0), (0, 1, 0), (0, -1, 0), (0, 0, 1), (0, 0, -1)}
+
+
+def transform(p: Point, up: Point, rotation: int):
+	new = {
+		(1, 0, 0): (p[1], p[0], -p[2]),
+		(-1, 0, 0): (p[1], -p[0], p[2]),
+		(0, 1, 0): p,
+		(0, -1, 0): (p[0], -p[1], -p[2]),
+		(0, 0, 1): (p[1], p[2], p[0]),
+		(0, 0, -1): (p[1], -p[2], -p[0])
+	}[up]
+	return {
+		0: new,
+		1: (new[2], new[1], -new[0]),
+		2: (-new[0], new[1], -new[2]),
+		3: (-new[2], new[1], new[0])
+	}[rotation]
+
+
+def add(p1: Point, p2: Point):
+	return tuple(val1 + val2 for val1, val2 in zip(p1, p2))
+
+
+def sub(p1: Point, p2: Point):
+	return tuple(val1 - val2 for val1, val2 in zip(p1, p2))
+
+
+def align(beacons1: set[Point], beacons2: set[Point]):
+	for axis in axes:
+		for rotation in range(4):
+			rotatedBeacons2 = set(transform(p, axis, rotation) for p in beacons2)
+			for b1 in beacons1:
+				for maybeMatchingInB2 in rotatedBeacons2:
+					delta = sub(b1, maybeMatchingInB2)
+					transformedBeacons2 = set(add(p, delta) for p in rotatedBeacons2)
+					if len(transformedBeacons2.intersection(beacons1)) >= 12:
+						return transformedBeacons2, delta, axis, rotation
+	return None
+
+
+def reduce(scans: list[set[Point]], scanners: list[set[Point]]):
+	toRemove = set()
+	for i in range(len(scans) - 1):
+		for j in range(i + 1, len(scans)):
+			if j in toRemove:
+				continue
+			alignment = align(scans[i], scans[j])
+			if alignment is not None:
+				alignedBeacons, translation, up, rotation = alignment
+				for scan in scanners[j]:
+					scanners[i].add(add(translation, transform(scan, up, rotation)))
+				scans[i] |= alignedBeacons
+				toRemove.add(j)
+	return [s for i, s in enumerate(scans) if i not in toRemove], [s for i, s in enumerate(scanners) if i not in toRemove]
+
+
+def solve():
+	scans = readInput("input")
+	scanners = [{(0, 0, 0)} for _ in scans]
+	while len(scans) > 1:
+		scans, scanners = reduce(scans, scanners)
+	allBeacons = scans[0]
+	print(len(allBeacons))
+	print(max(abs(x1 - x2) + abs(y1 - y2) + abs(z1 - z2) for (x1, y1, z1), (x2, y2, z2) in combinations(scanners[0], 2)))
+
+
+solve()
diff --git a/19/input b/19/input
new file mode 100644
index 0000000..8d89ca5
--- /dev/null
+++ b/19/input
@@ -0,0 +1,920 @@
+--- scanner 0 ---
+-817,-765,856
+443,-709,-511
+-658,753,-745
+378,506,-625
+557,-593,616
+-622,-827,819
+-611,-838,856
+-433,650,563
+-586,-856,-622
+398,565,499
+229,541,474
+585,-710,-578
+-584,611,490
+-796,-861,-671
+528,-778,-656
+-448,738,509
+702,-600,648
+-635,590,-725
+368,455,500
+339,605,-490
+288,624,-682
+-687,-819,-750
+-646,726,-814
+-134,-69,143
+-4,-120,3
+632,-644,504
+
+--- scanner 1 ---
+-576,-655,-870
+83,71,-65
+455,510,-438
+-496,-588,-822
+-601,-396,364
+-752,-444,373
+601,-737,495
+125,-92,-181
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+-407,683,546
+-700,501,-622
+603,-857,372
+-717,-310,415
+-409,-628,-813
+545,-770,-395
+363,354,318
+-538,654,501
+395,344,337
+466,407,-474
+-784,586,-567
+634,-809,-409
+687,-686,-444
+606,-670,479
+-593,685,436
+-752,662,-653
+
+--- scanner 2 ---
+-351,-447,608
+-522,-602,-725
+652,-529,515
+839,-608,-778
+116,-62,-109
+606,504,639
+-288,499,737
+-219,487,710
+-283,528,-835
+-455,-744,-726
+612,637,-413
+646,-520,584
+-408,-537,490
+-543,-498,589
+-411,427,-872
+530,514,796
+805,-675,-742
+-308,476,574
+872,621,-400
+-362,637,-877
+496,468,745
+740,489,-416
+964,-658,-827
+-377,-687,-794
+471,-547,543
+
+--- scanner 3 ---
+-600,-676,-662
+690,-716,598
+317,-749,-574
+716,563,-791
+444,358,756
+523,-729,495
+47,106,1
+-456,-623,-710
+-634,789,-520
+-625,659,492
+-649,745,633
+-514,796,-415
+496,487,728
+340,-665,-745
+-548,-726,-667
+762,490,-879
+-64,40,-123
+-576,-661,725
+867,555,-818
+346,499,705
+559,-583,601
+305,-766,-626
+-584,685,482
+-652,-454,737
+-455,845,-563
+-612,-636,677
+
+--- scanner 4 ---
+555,657,454
+-681,394,490
+-492,305,-497
+-707,-820,611
+720,-949,377
+818,447,-591
+-631,473,537
+770,492,-727
+193,7,-89
+-246,-812,-593
+-466,321,-586
+696,-780,402
+637,-890,-779
+-659,-811,762
+-793,-769,727
+467,577,391
+755,-800,-722
+-366,-689,-591
+774,355,-587
+656,-839,-587
+-433,-705,-596
+806,-810,403
+417,625,515
+109,-153,6
+-671,504,536
+-457,253,-428
+
+--- scanner 5 ---
+492,549,-889
+676,-597,352
+-552,-915,660
+685,-637,439
+-521,633,-789
+-2,-104,3
+-431,515,-846
+-102,40,-105
+515,386,-909
+503,413,-978
+290,489,399
+733,-570,519
+-541,574,335
+441,528,326
+-511,684,336
+272,-416,-691
+305,401,345
+-501,-829,544
+307,-539,-744
+258,-455,-602
+-482,534,-654
+-510,-781,695
+-632,-488,-658
+-616,-555,-663
+-509,-368,-660
+-372,598,310
+
+--- scanner 6 ---
+514,-446,-382
+414,762,-372
+-307,640,368
+-763,741,-861
+-499,-612,393
+415,-376,-468
+-304,643,449
+-518,-643,425
+381,743,-590
+795,-343,698
+-592,-701,-409
+-824,855,-903
+838,-421,652
+-429,629,495
+430,-425,-453
+858,-439,598
+584,691,680
+448,619,744
+-608,-645,-578
+-416,-656,379
+52,-36,-100
+553,722,676
+-37,110,83
+-842,751,-763
+371,655,-417
+-529,-773,-524
+
+--- scanner 7 ---
+-687,452,941
+-356,789,-401
+811,-554,-481
+897,-543,-349
+594,-328,503
+624,844,676
+-580,503,809
+638,-375,558
+-25,138,155
+832,839,-318
+748,890,-467
+-609,402,922
+-430,859,-504
+802,-497,-426
+-521,-476,669
+-360,-391,667
+-604,-522,-809
+-505,-560,-728
+-381,795,-329
+98,-36,82
+590,706,799
+-740,-513,-735
+-434,-514,604
+608,919,748
+861,804,-541
+689,-335,673
+
+--- scanner 8 ---
+-396,443,652
+-446,501,582
+883,-477,-273
+893,965,-608
+823,-389,-359
+938,922,-715
+42,-10,-17
+-669,-725,483
+-701,-787,591
+-373,-699,-453
+-744,549,-479
+928,822,493
+-472,490,571
+688,-496,-328
+618,-742,726
+152,149,23
+-556,-654,-489
+684,-778,544
+-650,-739,456
+720,955,-696
+-392,-555,-479
+674,-732,650
+842,921,423
+-665,709,-497
+-676,599,-652
+857,906,472
+
+--- scanner 9 ---
+-74,11,-72
+-84,-133,86
+668,503,-564
+539,815,778
+522,656,693
+-667,720,-632
+453,-604,677
+677,497,-633
+-711,-836,795
+-493,463,605
+-581,710,-619
+-806,-655,798
+699,-692,-638
+-495,-692,-520
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+589,690,729
+510,-526,745
+650,322,-592
+-671,712,-682
+-488,524,641
+595,-671,676
+660,-557,-539
+-587,-688,-476
+-455,323,626
+-632,-552,-524
+-695,-710,809
+
+--- scanner 10 ---
+-414,391,538
+-875,-448,-650
+373,308,473
+-949,-584,-641
+654,-692,573
+-426,393,596
+529,-667,-687
+-446,273,587
+527,-828,-772
+-79,-99,-74
+640,-697,443
+5,43,50
+709,558,-396
+505,-743,531
+-625,-713,705
+-830,575,-716
+434,346,377
+-636,-849,854
+-536,-746,797
+445,383,382
+-830,494,-503
+-875,519,-578
+464,-754,-649
+-868,-683,-603
+748,531,-351
+801,499,-520
+
+--- scanner 11 ---
+421,-382,-811
+454,-471,-719
+-823,-412,652
+413,618,635
+-615,517,821
+475,808,-587
+-659,572,774
+-599,-532,-347
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+500,683,673
+-918,-335,606
+484,-714,589
+-832,-467,595
+424,659,-545
+-710,687,814
+-641,664,-871
+-583,665,-782
+-535,632,-812
+719,-721,636
+318,-482,-868
+-461,-512,-436
+9,143,51
+470,794,-457
+-122,11,-24
+-384,-464,-361
+339,681,758
+
+--- scanner 12 ---
+677,-807,-475
+-514,-719,780
+-723,-601,-559
+840,468,-281
+-721,-664,-469
+682,477,-349
+-720,670,653
+100,12,-28
+541,-759,-520
+-448,443,-736
+-758,682,618
+-333,-691,762
+33,-147,98
+489,-626,862
+677,377,661
+-508,-650,789
+546,-744,772
+675,257,784
+-757,803,548
+-731,-651,-555
+-262,475,-694
+681,-645,811
+681,-763,-383
+672,444,677
+771,503,-333
+-426,499,-674
+
+--- scanner 13 ---
+-473,-566,-801
+520,720,876
+-523,489,329
+-725,-624,671
+-687,593,327
+830,-456,-396
+-423,-636,-859
+705,-676,642
+901,-477,-480
+-499,-555,-812
+-474,559,369
+-703,668,-703
+380,824,858
+693,712,-347
+157,-9,-102
+-771,495,-753
+911,731,-380
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+-764,-781,582
+759,-804,563
+-791,-790,654
+-692,513,-593
+815,-407,-381
+866,624,-337
+874,-732,626
+-4,-74,33
+
+--- scanner 14 ---
+-534,368,659
+-788,-761,-491
+-878,-818,-609
+-464,512,615
+25,-4,112
+367,-626,-472
+-723,-647,724
+-581,-714,725
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+567,-608,857
+-609,480,608
+678,-663,846
+-638,-792,793
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+-158,-135,147
+-768,363,-550
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+-113,-39,-22
+-798,364,-440
+-827,-626,-590
+504,-766,-476
+300,748,687
+-937,338,-526
+637,476,-829
+459,-630,-428
+
+--- scanner 15 ---
+-601,-717,591
+471,744,-416
+633,-619,-476
+-856,501,412
+-6,160,45
+-762,-665,560
+628,-610,-709
+-753,490,376
+-712,540,350
+-146,23,18
+-580,-372,-608
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+-609,-503,-563
+-919,430,-399
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+-578,-558,-498
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+-677,-749,505
+-749,437,-318
+445,842,-377
+443,406,874
+655,-563,-506
+-909,398,-380
+497,717,-299
+384,443,802
+
+--- scanner 16 ---
+-801,655,-363
+482,-522,-398
+602,-354,555
+-594,-657,-859
+-511,864,386
+54,93,4
+705,-446,598
+-789,690,-401
+-866,-353,702
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+-104,15,104
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+545,-432,-400
+-584,818,474
+644,442,520
+-618,-637,-695
+-817,-412,850
+-576,969,447
+-562,-699,-673
+745,407,639
+
+--- scanner 17 ---
+733,-307,-527
+-583,868,-693
+667,797,-426
+70,174,-81
+-450,-610,-736
+610,-626,389
+816,881,-477
+-517,909,-589
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+-716,-406,591
+-641,-619,-639
+-568,-679,-796
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+-398,830,724
+-554,879,-786
+-745,-392,488
+-508,808,760
+787,639,555
+630,-381,-457
+-699,-394,397
+-23,29,4
+
+--- scanner 18 ---
+-609,-497,-861
+-749,-667,561
+-719,-467,-860
+-524,334,-797
+-563,485,-870
+562,720,-844
+-436,349,-851
+-508,414,513
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+-698,-880,543
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+-626,-805,527
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+-74,79,4
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+-623,374,462
+517,-851,403
+-453,367,557
+880,-508,-536
+-633,-328,-886
+746,-466,-501
+602,729,-757
+75,-21,-160
+
+--- scanner 19 ---
+-817,-615,-560
+-807,587,607
+-639,-366,727
+549,-811,-382
+-663,635,554
+22,94,40
+610,495,-385
+849,-559,685
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+-855,-755,-581
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+-939,821,-534
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+-729,-368,664
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+-118,21,-56
+-643,-358,677
+744,531,-309
+-814,950,-496
+-822,-554,-596
+723,423,-403
+797,-516,689
+367,603,722
+
+--- scanner 20 ---
+-707,534,-290
+-488,377,466
+-491,574,510
+859,-343,-465
+615,-893,839
+-664,-864,-409
+-454,-687,819
+-560,-651,673
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+-786,524,-307
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+-557,-520,806
+-687,-714,-397
+786,-870,755
+-715,-766,-268
+832,-494,-473
+667,-905,856
+482,423,421
+
+--- scanner 21 ---
+438,-512,-856
+562,-627,-808
+516,577,-789
+-549,-597,868
+43,5,13
+646,636,558
+-535,-644,-343
+-681,-729,884
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+-540,-518,-418
+553,-745,407
+567,594,-761
+568,579,490
+-773,550,457
+-738,684,-506
+559,500,-844
+
+--- scanner 22 ---
+139,7,36
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+846,-774,604
+729,-705,-721
+-554,-568,688
+-265,406,-834
+-274,-414,-697
+-521,706,469
+-576,717,580
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+-702,703,564
+-418,-616,643
+-409,-404,-797
+-7,-172,97
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+844,-711,694
+854,-724,608
+457,534,820
+-558,-612,780
+-388,520,-774
+-413,-528,-688
+-473,413,-807
+
+--- scanner 23 ---
+-470,462,-472
+397,-623,373
+874,565,-809
+-577,597,-441
+825,428,359
+807,-769,-685
+-558,402,-386
+-859,601,431
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+840,443,310
+-813,611,537
+-333,-687,-584
+-68,22,-17
+-428,-543,-525
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+-606,-747,663
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+-610,-678,801
+671,-705,-757
+841,347,-828
+-581,-728,769
+741,357,380
+417,-677,355
+884,392,-721
+
+--- scanner 24 ---
+-583,-471,-740
+695,458,-641
+-464,566,-502
+363,-388,460
+437,-318,563
+682,528,583
+-601,-258,-689
+587,-674,-750
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+616,-775,-863
+-854,-373,600
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+-378,582,-453
+-741,-287,526
+-394,482,-547
+-617,-333,-617
+-825,-338,377
+47,144,1
+-583,694,406
+-423,713,374
+771,572,-697
+-649,733,377
+694,-725,-882
+-119,51,-90
+692,539,453
+716,506,489
+
+--- scanner 25 ---
+825,-589,-478
+-5,-111,11
+-756,-672,559
+-481,-363,-407
+-41,69,169
+752,-804,598
+-686,849,-763
+791,651,-479
+-463,-418,-541
+-622,-677,458
+642,-794,644
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+-786,-662,525
+841,-615,-389
+-459,735,657
+-496,796,553
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+-786,859,-628
+-444,859,710
+-677,735,-624
+893,-580,-320
+673,-754,645
+569,344,499
+699,695,-483
+-463,-351,-577
+521,294,623
+
+--- scanner 26 ---
+-795,-443,-559
+-804,-231,881
+447,-796,-426
+787,552,772
+323,-746,-474
+-939,-241,781
+-692,879,-385
+-800,-355,772
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+761,681,-643
+-740,586,891
+-655,-439,-696
+-948,579,918
+719,720,-763
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+-109,74,78
+725,489,700
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+377,-294,591
+710,651,-676
+-637,890,-496
+-659,-395,-604
+-511,876,-480
+-825,693,858
+736,637,788
+
+--- scanner 27 ---
+649,-535,687
+-453,717,-503
+-656,483,676
+-709,-760,-314
+-416,655,-698
+30,-136,63
+550,-661,-354
+-96,6,-70
+-798,-651,348
+-773,-675,517
+615,-658,825
+-624,490,821
+645,-831,-347
+-768,534,751
+631,-586,900
+-782,-721,-465
+-416,728,-492
+601,-776,-394
+-772,-565,487
+625,541,-560
+758,567,725
+-763,-848,-329
+810,450,844
+796,555,858
+543,479,-582
+565,396,-625
+
+--- scanner 28 ---
+-730,770,-606
+-308,-494,617
+716,721,-503
+938,683,335
+-735,560,-557
+550,-782,-727
+-802,-262,-939
+-477,-478,561
+494,-587,528
+-693,669,-478
+852,710,-414
+135,108,-167
+887,729,301
+-662,-244,-835
+-423,-557,689
+480,-670,572
+879,698,-483
+-760,-323,-825
+-271,560,417
+596,-657,-713
+781,693,411
+469,-779,-724
+526,-568,559
+-258,576,677
+33,-21,-16
+-274,708,545
+
+--- scanner 29 ---
+-730,-682,812
+582,-864,-690
+436,772,-425
+644,-964,-631
+-719,588,-416
+486,-851,510
+-871,-700,686
+-766,-590,650
+-803,643,-501
+-487,-549,-382
+526,815,855
+-68,-180,-10
+705,-954,-635
+-515,388,673
+615,801,894
+-428,397,713
+668,766,771
+73,-15,108
+477,-750,560
+447,736,-322
+-490,-581,-412
+-595,340,740
+461,-900,431
+-771,557,-577
+-429,-484,-442
+486,798,-466
+
+--- scanner 30 ---
+-676,-823,-346
+-635,-849,-396
+-685,-639,809
+520,-325,-262
+-411,813,-492
+483,-484,816
+-524,-608,861
+-470,913,-554
+-719,498,577
+548,-371,-466
+-466,903,-615
+697,-492,881
+-600,-694,893
+407,740,-578
+-779,-787,-357
+569,774,-569
+88,28,-12
+588,-476,861
+520,692,592
+461,-397,-299
+-659,433,519
+-689,530,580
+572,819,705
+611,788,-568
+472,733,727
+-64,-55,137
+
+--- scanner 31 ---
+-723,642,402
+-674,-706,617
+600,459,590
+737,-568,299
+585,426,791
+-550,618,-599
+-561,-322,-516
+688,-618,424
+-603,474,-551
+-633,-679,792
+361,-481,-822
+-477,-299,-687
+327,-643,-921
+537,564,-830
+538,342,-785
+-500,566,-594
+-62,44,-15
+652,-551,458
+-460,-287,-635
+-660,552,404
+500,467,-914
+-605,-697,611
+-673,638,394
+271,-657,-843
+564,464,651
+
+--- scanner 32 ---
+677,-408,-808
+-395,369,546
+627,-359,-933
+622,653,-890
+583,859,407
+601,582,-837
+-623,-342,718
+610,-444,-774
+-607,-328,592
+-648,771,-940
+-718,-339,537
+541,-460,486
+-490,657,-922
+677,942,399
+-401,501,531
+-405,-532,-581
+-400,-496,-642
+683,-461,553
+600,887,356
+-367,-511,-441
+598,-392,408
+493,604,-898
+-432,436,684
+-18,89,12
+-580,632,-900
diff --git a/19/testInput b/19/testInput
new file mode 100644
index 0000000..4e496e9
--- /dev/null
+++ b/19/testInput
@@ -0,0 +1,136 @@
+--- scanner 0 ---
+404,-588,-901
+528,-643,409
+-838,591,734
+390,-675,-793
+-537,-823,-458
+-485,-357,347
+-345,-311,381
+-661,-816,-575
+-876,649,763
+-618,-824,-621
+553,345,-567
+474,580,667
+-447,-329,318
+-584,868,-557
+544,-627,-890
+564,392,-477
+455,729,728
+-892,524,684
+-689,845,-530
+423,-701,434
+7,-33,-71
+630,319,-379
+443,580,662
+-789,900,-551
+459,-707,401
+
+--- scanner 1 ---
+686,422,578
+605,423,415
+515,917,-361
+-336,658,858
+95,138,22
+-476,619,847
+-340,-569,-846
+567,-361,727
+-460,603,-452
+669,-402,600
+729,430,532
+-500,-761,534
+-322,571,750
+-466,-666,-811
+-429,-592,574
+-355,545,-477
+703,-491,-529
+-328,-685,520
+413,935,-424
+-391,539,-444
+586,-435,557
+-364,-763,-893
+807,-499,-711
+755,-354,-619
+553,889,-390
+
+--- scanner 2 ---
+649,640,665
+682,-795,504
+-784,533,-524
+-644,584,-595
+-588,-843,648
+-30,6,44
+-674,560,763
+500,723,-460
+609,671,-379
+-555,-800,653
+-675,-892,-343
+697,-426,-610
+578,704,681
+493,664,-388
+-671,-858,530
+-667,343,800
+571,-461,-707
+-138,-166,112
+-889,563,-600
+646,-828,498
+640,759,510
+-630,509,768
+-681,-892,-333
+673,-379,-804
+-742,-814,-386
+577,-820,562
+
+--- scanner 3 ---
+-589,542,597
+605,-692,669
+-500,565,-823
+-660,373,557
+-458,-679,-417
+-488,449,543
+-626,468,-788
+338,-750,-386
+528,-832,-391
+562,-778,733
+-938,-730,414
+543,643,-506
+-524,371,-870
+407,773,750
+-104,29,83
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+-778,-728,485
+426,699,580
+-438,-605,-362
+-469,-447,-387
+509,732,623
+647,635,-688
+-868,-804,481
+614,-800,639
+595,780,-596
+
+--- scanner 4 ---
+727,592,562
+-293,-554,779
+441,611,-461
+-714,465,-776
+-743,427,-804
+-660,-479,-426
+832,-632,460
+927,-485,-438
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+110,16,151
+-258,-428,682
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+-211,-452,876
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+-575,615,604
+-485,667,467
+-680,325,-822
+-627,-443,-432
+872,-547,-609
+833,512,582
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+-652,-548,-490
+30,-46,-14