diff --git a/out.js b/out.js
index b047a68..4f8f95a 100644
--- a/out.js
+++ b/out.js
@@ -1242,6 +1242,21 @@ utils = {
 if (typeof window == "undefined" && process.argv[2] == "test") {
 	const fs = require("fs")
 
+	function test(name, answer, func, ...args) {
+		console.time(name)
+		let res = func(...args)
+		console.timeEnd(name)
+
+		console.log(`${name}: Got ${res}, expected ${answer}`)
+
+		if (res == answer) {
+			console.log(`${name}: SUCCESS`)
+		} else {
+			console.error(`${name}: FAIL`)
+			process.exit(1)
+		}
+	}
+
 	const year = "2021"
 
 	for (let i = +process.argv[3] || 1; i <= 25; i++) {
@@ -1249,28 +1264,11 @@ if (typeof window == "undefined" && process.argv[2] == "test") {
 		const input = fs.readFileSync(`./${year}/inputs/${i}`, "utf8")
 		const answers = fs.readFileSync(`./${year}/answers/${i}`, "utf8").split("\n-----\n")
 
-		let res = func(input, false)
-
-		console.log(`${year} day ${i} part 1: Got ${res}, expected ${answers[0]}`)
-
-		if (res == answers[0]) {
-			console.log(`${year} day ${i} part 1: SUCCESS`)
-		} else {
-			console.error(`${year} day ${i} part 1: FAIL`)
-			process.exit(1)
-		}
-
 		if (i != 25) {
-			res = func(input, true)
-
-			console.log(`${year} day ${i} part 2: Got ${res}, expected ${answers[1]}`)
-
-			if (res == answers[1]) {
-				console.log(`${year} day ${i} part 2: SUCCESS`)
-			} else {
-				console.error(`${year} day ${i} part 2: FAIL`)
-				process.exit(1)
-			}
+			test(`${year} day ${i} part 1`, answers[0], func, input, false)
+			test(`${year} day ${i} part 2`, answers[1], func, input, true)
+		} else {
+			test(`${year} day ${i}`, answers[0], func, input)
 		}
 	}
 }
diff --git a/out.txt b/out.txt
new file mode 100644
index 0000000..cad4de8
--- /dev/null
+++ b/out.txt
@@ -0,0 +1,1703 @@
+2021 day 1 part 1: 0.658ms
+2021 day 1 part 1: Got 1292, expected 1292
+2021 day 1 part 1: SUCCESS
+2021 day 1 part 2: 0.469ms
+2021 day 1 part 2: Got 1262, expected 1262
+2021 day 1 part 2: SUCCESS
+2021 day 2 part 1: 1.951ms
+2021 day 2 part 1: Got 1813801, expected 1813801
+2021 day 2 part 1: SUCCESS
+2021 day 2 part 2: 2.567ms
+2021 day 2 part 2: Got 1960569556, expected 1960569556
+2021 day 2 part 2: SUCCESS
+2021 day 3 part 1: 15.677ms
+2021 day 3 part 1: Got 3882564, expected 3882564
+2021 day 3 part 1: SUCCESS
+2021 day 3 part 2: 7.946ms
+2021 day 3 part 2: Got 3385170, expected 3385170
+2021 day 3 part 2: SUCCESS
+2021 day 4 part 1: 23.222ms
+2021 day 4 part 1: Got 54275, expected 54275
+2021 day 4 part 1: SUCCESS
+2021 day 4 part 2: 12.334ms
+2021 day 4 part 2: Got 13158, expected 13158
+2021 day 4 part 2: SUCCESS
+2021 day 5 part 1: 375.817ms
+2021 day 5 part 1: Got 6856, expected 6856
+2021 day 5 part 1: SUCCESS
+2021 day 5 part 2: 580.205ms
+2021 day 5 part 2: Got 20666, expected 20666
+2021 day 5 part 2: SUCCESS
+2021 day 6 part 1: 0.237ms
+2021 day 6 part 1: Got 353274, expected 353274
+2021 day 6 part 1: SUCCESS
+2021 day 6 part 2: 0.167ms
+2021 day 6 part 2: Got 1609314870967, expected 1609314870967
+2021 day 6 part 2: SUCCESS
+2021 day 7 part 1: 99.013ms
+2021 day 7 part 1: Got 347011, expected 347011
+2021 day 7 part 1: SUCCESS
+2021 day 7 part 2: 78.519ms
+2021 day 7 part 2: Got 98363777, expected 98363777
+2021 day 7 part 2: SUCCESS
+2021 day 8 part 1: 3.902ms
+2021 day 8 part 1: Got 525, expected 525
+2021 day 8 part 1: SUCCESS
+2021 day 8 part 2: 10.451ms
+2021 day 8 part 2: Got 1083859, expected 1083859
+2021 day 8 part 2: SUCCESS
+2021 day 9 part 1: 62.451ms
+2021 day 9 part 1: Got 585, expected 585
+2021 day 9 part 1: SUCCESS
+2021 day 9 part 2: 278.819ms
+2021 day 9 part 2: Got 827904, expected 827904
+2021 day 9 part 2: SUCCESS
+2021 day 10 part 1: 3.629ms
+2021 day 10 part 1: Got 469755, expected 469755
+2021 day 10 part 1: SUCCESS
+2021 day 10 part 2: 2.604ms
+2021 day 10 part 2: Got 2762335572, expected 2762335572
+2021 day 10 part 2: SUCCESS
+2021 day 11 part 1: 27.719ms
+2021 day 11 part 1: Got 1691, expected 1691
+2021 day 11 part 1: SUCCESS
+2021 day 11 part 2: 31.766ms
+2021 day 11 part 2: Got 216, expected 216
+2021 day 11 part 2: SUCCESS
+2021 day 12 part 1: 62.505ms
+2021 day 12 part 1: Got 4241, expected 4241
+2021 day 12 part 1: SUCCESS
+2021 day 12 part 2: 1.964s
+2021 day 12 part 2: Got 122134, expected 122134
+2021 day 12 part 2: SUCCESS
+2021 day 13 part 1: 24.749ms
+2021 day 13 part 1: Got 695, expected 695
+2021 day 13 part 1: SUCCESS
+2021 day 13 part 2: 77.991ms
+2021 day 13 part 2: Got  ##    ## ####  ##  #    #  # ###    ##
+#  #    #    # #  # #    #  # #  #    #
+#       #   #  #    #    #  # #  #    #
+# ##    #  #   # ## #    #  # ###     #
+#  # #  # #    #  # #    #  # #    #  #
+ ###  ##  ####  ### ####  ##  #     ## , expected  ##    ## ####  ##  #    #  # ###    ##
+#  #    #    # #  # #    #  # #  #    #
+#       #   #  #    #    #  # #  #    #
+# ##    #  #   # ## #    #  # ###     #
+#  # #  # #    #  # #    #  # #    #  #
+ ###  ##  ####  ### ####  ##  #     ## 
+2021 day 13 part 2: SUCCESS
+2021 day 14 part 1: 2.116ms
+2021 day 14 part 1: Got 2068, expected 2068
+2021 day 14 part 1: SUCCESS
+2021 day 14 part 2: 4.458ms
+2021 day 14 part 2: Got 2158894777814, expected 2158894777814
+2021 day 14 part 2: SUCCESS
+2
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+heap gen: 34.92ms
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+search: 69.697ms
+2021 day 15 part 1: 184.613ms
+2021 day 15 part 1: Got 498, expected 498
+2021 day 15 part 1: SUCCESS
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+heap gen: 568.484ms
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+55000
+54000
+53000
+52000
+51000
+50000
+49000
+48000
+47000
+46000
+45000
+44000
+43000
+42000
+41000
+40000
+39000
+38000
+37000
+36000
+35000
+34000
+33000
+32000
+31000
+30000
+29000
+28000
+27000
+26000
+25000
+24000
+23000
+22000
+21000
+20000
+19000
+18000
+17000
+16000
+15000
+14000
+13000
+12000
+11000
+10000
+9000
+8000
+7000
+6000
+5000
+4000
+3000
+2000
+1000
+search: 16.241s
+2021 day 15 part 2: 18.613s
+2021 day 15 part 2: Got 2901, expected 2901
+2021 day 15 part 2: SUCCESS
+2021 day 16 part 1: 34.339ms
+2021 day 16 part 1: Got 1038, expected 1038
+2021 day 16 part 1: SUCCESS
+2021 day 16 part 2: 18.058ms
+2021 day 16 part 2: Got 246761930504, expected 246761930504
+2021 day 16 part 2: SUCCESS
+2021 day 17 part 1: 65.675ms
+2021 day 17 part 1: Got 4656, expected 4656
+2021 day 17 part 1: SUCCESS
+2021 day 17 part 2: 55.43ms
+2021 day 17 part 2: Got 1908, expected 1908
+2021 day 17 part 2: SUCCESS
+2021 day 18 part 1: 23.883ms
+2021 day 18 part 1: Got 3494, expected 3494
+2021 day 18 part 1: SUCCESS
+2021 day 18 part 2: 236.218ms
+2021 day 18 part 2: Got 4712, expected 4712
+2021 day 18 part 2: SUCCESS
+linked 0<->5	(0 point 0 == 5 point 9 with rotation 8)
+linked 5<->31	(5 point 0 == 31 point 5 with rotation 9)
+linked 31<->14	(31 point 0 == 14 point 8 with rotation 11)
+linked 14<->3	(14 point 4 == 3 point 11 with rotation 13)
+linked 3<->10	(3 point 0 == 10 point 5 with rotation 15)
+linked 10<->30	(10 point 0 == 30 point 16 with rotation 13)
+linked 30<->8	(30 point 1 == 8 point 11 with rotation 16)
+linked 30<->13	(30 point 1 == 13 point 23 with rotation 15)
+linked 13<->4	(13 point 0 == 4 point 9 with rotation 19)
+linked 4<->28	(4 point 0 == 28 point 9 with rotation 13)
+linked 28<->20	(28 point 0 == 20 point 17 with rotation 22)
+linked 20<->11	(20 point 0 == 11 point 18 with rotation 13)
+linked 20<->18	(20 point 0 == 18 point 22 with rotation 10)
+linked 18<->12	(18 point 3 == 12 point 24 with rotation 14)
+linked 12<->16	(12 point 1 == 16 point 4 with rotation 6)
+linked 16<->34	(16 point 1 == 34 point 25 with rotation 17)
+linked 34<->2	(34 point 0 == 2 point 2 with rotation 3)
+linked 2<->1	(2 point 1 == 1 point 15 with rotation 18)
+linked 1<->33	(1 point 0 == 33 point 7 with rotation 4)
+linked 12<->17	(12 point 1 == 17 point 10 with rotation 18)
+linked 20<->32	(20 point 1 == 32 point 12 with rotation 12)
+linked 32<->19	(32 point 0 == 19 point 5 with rotation 23)
+linked 19<->23	(19 point 1 == 23 point 9 with rotation 2)
+linked 19<->24	(19 point 1 == 24 point 4 with rotation 6)
+linked 4<->7	(4 point 3 == 7 point 3 with rotation 7)
+linked 7<->26	(7 point 3 == 26 point 16 with rotation 12)
+linked 4<->22	(4 point 3 == 22 point 25 with rotation 19)
+linked 3<->15	(3 point 0 == 15 point 15 with rotation 1)
+linked 15<->27	(15 point 2 == 27 point 15 with rotation 20)
+linked 27<->6	(27 point 0 == 6 point 7 with rotation 5)
+linked 27<->35	(27 point 0 == 35 point 14 with rotation 20)
+linked 35<->9	(35 point 0 == 9 point 11 with rotation 9)
+linked 9<->25	(9 point 0 == 25 point 18 with rotation 5)
+linked 25<->29	(25 point 0 == 29 point 7 with rotation 23)
+linked 29<->21	(29 point 0 == 21 point 6 with rotation 3)
+2021 day 19 part 1: 37.496s
+2021 day 19 part 1: Got 447, expected 447
+2021 day 19 part 1: SUCCESS
+linked 0<->5	(0 point 0 == 5 point 9 with rotation 8)
+linked 5<->31	(5 point 0 == 31 point 5 with rotation 9)
+linked 31<->14	(31 point 0 == 14 point 8 with rotation 11)
+linked 14<->3	(14 point 4 == 3 point 11 with rotation 13)
+linked 3<->10	(3 point 0 == 10 point 5 with rotation 15)
+linked 10<->30	(10 point 0 == 30 point 16 with rotation 13)
+linked 30<->8	(30 point 1 == 8 point 11 with rotation 16)
+linked 30<->13	(30 point 1 == 13 point 23 with rotation 15)
+linked 13<->4	(13 point 0 == 4 point 9 with rotation 19)
+linked 4<->28	(4 point 0 == 28 point 9 with rotation 13)
+linked 28<->20	(28 point 0 == 20 point 17 with rotation 22)
+linked 20<->11	(20 point 0 == 11 point 18 with rotation 13)
+linked 20<->18	(20 point 0 == 18 point 22 with rotation 10)
+linked 18<->12	(18 point 3 == 12 point 24 with rotation 14)
+linked 12<->16	(12 point 1 == 16 point 4 with rotation 6)
+linked 16<->34	(16 point 1 == 34 point 25 with rotation 17)
+linked 34<->2	(34 point 0 == 2 point 2 with rotation 3)
+linked 2<->1	(2 point 1 == 1 point 15 with rotation 18)
+linked 1<->33	(1 point 0 == 33 point 7 with rotation 4)
+linked 12<->17	(12 point 1 == 17 point 10 with rotation 18)
+linked 20<->32	(20 point 1 == 32 point 12 with rotation 12)
+linked 32<->19	(32 point 0 == 19 point 5 with rotation 23)
+linked 19<->23	(19 point 1 == 23 point 9 with rotation 2)
+linked 19<->24	(19 point 1 == 24 point 4 with rotation 6)
+linked 4<->7	(4 point 3 == 7 point 3 with rotation 7)
+linked 7<->26	(7 point 3 == 26 point 16 with rotation 12)
+linked 4<->22	(4 point 3 == 22 point 25 with rotation 19)
+linked 3<->15	(3 point 0 == 15 point 15 with rotation 1)
+linked 15<->27	(15 point 2 == 27 point 15 with rotation 20)
+linked 27<->6	(27 point 0 == 6 point 7 with rotation 5)
+linked 27<->35	(27 point 0 == 35 point 14 with rotation 20)
+linked 35<->9	(35 point 0 == 9 point 11 with rotation 9)
+linked 9<->25	(9 point 0 == 25 point 18 with rotation 5)
+linked 25<->29	(25 point 0 == 29 point 7 with rotation 23)
+linked 29<->21	(29 point 0 == 21 point 6 with rotation 3)
+2021 day 19 part 2: 37.058s
+2021 day 19 part 2: Got 15672, expected 15672
+2021 day 19 part 2: SUCCESS
+2021 day 20 part 1: 88.768ms
+2021 day 20 part 1: Got 4873, expected 4873
+2021 day 20 part 1: SUCCESS
+2021 day 20 part 2: 1.912s
+2021 day 20 part 2: Got 16394, expected 16394
+2021 day 20 part 2: SUCCESS
+2021 day 21 part 1: 0.553ms
+2021 day 21 part 1: Got 597600, expected 597600
+2021 day 21 part 1: SUCCESS
+2021 day 21 part 2: 320.731ms
+2021 day 21 part 2: Got 634769613696613, expected 634769613696613
+2021 day 21 part 2: SUCCESS
+2021 day 22 part 1: 38.235ms
+2021 day 22 part 1: Got 589411, expected 589411
+2021 day 22 part 1: SUCCESS
+2021 day 22 part 2: 117.909ms
+2021 day 22 part 2: Got 1130514303649907, expected 1130514303649907
+2021 day 22 part 2: SUCCESS
+iteration 0 heap size 28 min energy 0
+iteration 10000 heap size 9147 min energy 4409
+iteration 20000 heap size 10357 min energy 6015
+iteration 30000 heap size 14414 min energy 7695
+iteration 40000 heap size 15108 min energy 8555
+iteration 50000 heap size 14881 min energy 9425
+iteration 60000 heap size 12860 min energy 10003
+2021 day 23 part 1: 2.509s
+2021 day 23 part 1: Got 10607, expected 10607
+2021 day 23 part 1: SUCCESS
+iteration 0 heap size 28 min energy 0
+iteration 10000 heap size 11415 min energy 4130
+iteration 20000 heap size 12145 min energy 5620
+iteration 30000 heap size 12156 min energy 6971
+iteration 40000 heap size 12984 min energy 8071
+iteration 50000 heap size 11889 min energy 9313
+iteration 60000 heap size 11552 min energy 10455
+iteration 70000 heap size 7414 min energy 12084
+iteration 80000 heap size 3371 min energy 14557
+2021 day 23 part 2: 2.632s
+2021 day 23 part 2: Got 59071, expected 59071
+2021 day 23 part 2: SUCCESS
+2021 day 24 part 1: 0.302ms
+2021 day 24 part 1: Got 99691891979938, expected 99691891979938
+2021 day 24 part 1: SUCCESS
+2021 day 24 part 2: 0.309ms
+2021 day 24 part 2: Got 27141191213911, expected 27141191213911
+2021 day 24 part 2: SUCCESS
+2021 day 25: 2.220s
+2021 day 25: Got 534, expected 534
+2021 day 25: SUCCESS
diff --git a/test.js b/test.js
index 0804e60..20c34cf 100644
--- a/test.js
+++ b/test.js
@@ -1,6 +1,21 @@
 if (typeof window == "undefined" && process.argv[2] == "test") {
 	const fs = require("fs")
 
+	function test(name, answer, func, ...args) {
+		console.time(name)
+		let res = func(...args)
+		console.timeEnd(name)
+
+		console.log(`${name}: Got ${res}, expected ${answer}`)
+
+		if (res == answer) {
+			console.log(`${name}: SUCCESS`)
+		} else {
+			console.error(`${name}: FAIL`)
+			process.exit(1)
+		}
+	}
+
 	const year = "2021"
 
 	for (let i = +process.argv[3] || 1; i <= 25; i++) {
@@ -8,28 +23,11 @@ if (typeof window == "undefined" && process.argv[2] == "test") {
 		const input = fs.readFileSync(`./${year}/inputs/${i}`, "utf8")
 		const answers = fs.readFileSync(`./${year}/answers/${i}`, "utf8").split("\n-----\n")
 
-		let res = func(input, false)
-
-		console.log(`${year} day ${i} part 1: Got ${res}, expected ${answers[0]}`)
-
-		if (res == answers[0]) {
-			console.log(`${year} day ${i} part 1: SUCCESS`)
-		} else {
-			console.error(`${year} day ${i} part 1: FAIL`)
-			process.exit(1)
-		}
-
 		if (i != 25) {
-			res = func(input, true)
-
-			console.log(`${year} day ${i} part 2: Got ${res}, expected ${answers[1]}`)
-
-			if (res == answers[1]) {
-				console.log(`${year} day ${i} part 2: SUCCESS`)
-			} else {
-				console.error(`${year} day ${i} part 2: FAIL`)
-				process.exit(1)
-			}
+			test(`${year} day ${i} part 1`, answers[0], func, input, false)
+			test(`${year} day ${i} part 2`, answers[1], func, input, true)
+		} else {
+			test(`${year} day ${i}`, answers[0], func, input)
 		}
 	}
 }