From 6e82666c0a943133268d22604f1e79c0863f74a6 Mon Sep 17 00:00:00 2001
From: jwilliamson1 <joseph.williamson15@gmail.com>
Date: Sat, 30 Dec 2017 11:43:00 -0500
Subject: [PATCH 1/3] finished

---
 interval-arithmetic.rkt | 438 +++++++++++++++++++++++++++++++++++-----
 1 file changed, 391 insertions(+), 47 deletions(-)

diff --git a/interval-arithmetic.rkt b/interval-arithmetic.rkt
index 6e6ef9d..6ba1b21 100644
--- a/interval-arithmetic.rkt
+++ b/interval-arithmetic.rkt
@@ -1,7 +1,7 @@
 #reader(lib"read.ss""wxme")WXME0108 ## 
 #|
    This file uses the GRacket editor format.
-   Open this file in DrRacket version 6.6 or later to read it.
+   Open this file in DrRacket version 6.5 or later to read it.
 
    Most likely, it was created by saving a program in DrRacket,
    and it probably contains a program with non-text elements
@@ -14,12 +14,7 @@
 1 1 8 #"wximage\0"
 2 0 8 #"wxmedia\0"
 4 1 34 #"(lib \"syntax-browser.ss\" \"mrlib\")\0"
-1 0 36 #"(lib \"cache-image-snip.ss\" \"mrlib\")\0"
-1 0 68
-(
- #"((lib \"image-core.ss\" \"mrlib\") (lib \"image-core-wxme.rkt\" \"mr"
- #"lib\"))\0"
-) 1 0 16 #"drscheme:number\0"
+1 0 16 #"drscheme:number\0"
 3 0 44 #"(lib \"number-snip.ss\" \"drscheme\" \"private\")\0"
 1 0 36 #"(lib \"comment-snip.ss\" \"framework\")\0"
 1 0 93
@@ -28,7 +23,12 @@
  #"pclass-wxme.ss\" \"framework\"))\0"
 ) 0 0 43 #"(lib \"collapsed-snipclass.ss\" \"framework\")\0"
 0 0 19 #"drscheme:sexp-snip\0"
-0 0 29 #"drscheme:bindings-snipclass%\0"
+0 0 36 #"(lib \"cache-image-snip.ss\" \"mrlib\")\0"
+1 0 68
+(
+ #"((lib \"image-core.ss\" \"mrlib\") (lib \"image-core-wxme.rkt\" \"mr"
+ #"lib\"))\0"
+) 1 0 29 #"drscheme:bindings-snipclass%\0"
 1 0 101
 (
  #"((lib \"ellipsis-snip.rkt\" \"drracket\" \"private\") (lib \"ellipsi"
@@ -55,12 +55,12 @@
 1 0 10 #"text-box%\0"
 1 0 32 #"(lib \"text-snipclass.ss\" \"xml\")\0"
 1 0 1 6 #"wxloc\0"
-          0 0 65 0 1 #"\0"
+          0 0 68 0 1 #"\0"
 0 75 1 #"\0"
 0 10 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 0 9
 #"Standard\0"
-0 75 17 #"DejaVu Sans Mono\0"
-0 11 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 2 1
+0 75 12 #"Courier New\0"
+0 10 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 2 1
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@@ -93,23 +93,23 @@
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-#"framework:syntax-color:scheme:keyword\0"
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+38 #"framework:syntax-color:scheme:keyword\0"
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-1 #"\0"
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+#"\0"
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@@ -138,8 +138,11 @@
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-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 0 0 0 0 0 -1 -1 2 36
-#"framework:syntax-color:scheme:other\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 0 0 0 0 0 -1 -1 2 1
+#"\0"
+0 -1 1 #"\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
+36 #"framework:syntax-color:scheme:other\0"
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@@ -187,12 +190,9 @@
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@@ -228,7 +228,16 @@
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+255 0 -1 -1           0 1865 0 30 3 12 #"#lang racket"
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@@ -512,6 +521,27 @@
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+0 0 14 3 14 #"center-percent"
+0 0 26 3 1 #" "
+0 0 14 3 8 #"interval"
+0 0 26 3 1 #")"
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+0 0 26 3 3 #"  ("
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+0 0 14 3 6 #"center"
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+0 0 26 3 2 #")("
+0 0 14 3 7 #"percent"
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+0 0 14 3 8 #"interval"
+0 0 26 3 3 #")))"
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@@ -552,13 +582,11 @@
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 0 0 18 3 2 #";("
 0 0 18 3 11 #"lower-bound"
-0 0 18 3 1 #"("
-0 0 18 3 26 #"add-interval int-x int-y))"
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 0 0 18 3 11 #"upper-bound"
-0 0 18 3 1 #"("
-0 0 18 3 26 #"add-interval int-x int-y))"
+0 0 18 3 27 #"(add-interval int-x int-y))"
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@@ -1161,7 +1189,7 @@
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-0 0 14 3 12 #"mul-interval"
+0 0 14 3 16 #"old-mul-interval"
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@@ -1292,7 +1320,7 @@
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 0 0 26 3 1 #" "
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@@ -1359,7 +1387,7 @@
 0 0 26 3 2 #"))"
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 0 0 26 3 1 #" "
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@@ -1449,7 +1477,7 @@
 0 0 26 3 3 #")))"
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 0 0 14 3 13 #"sum-of-widths"
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 0 0 14 3 16 #"old-mul-interval"
 0 0 26 3 1 #" "
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@@ -1919,27 +1947,103 @@
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+0 0 14 3 4 #"ones"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"intA"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 34 #"                                 ("
+0 0 14 3 12 #"div-interval"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"ones"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"intA"
+0 0 26 3 4 #"))))"
 0           0

From 46acda46c66419cc410f62a1f2bcf4fda37545ef Mon Sep 17 00:00:00 2001
From: jwilliamson1 <joseph.williamson15@gmail.com>
Date: Sun, 31 Dec 2017 14:47:32 -0500
Subject: [PATCH 2/3] finished reverse, deep reverse, and fringe

---
 lists-sicp.rkt | 607 ++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 525 insertions(+), 82 deletions(-)

diff --git a/lists-sicp.rkt b/lists-sicp.rkt
index 6c607ab..98cabd3 100644
--- a/lists-sicp.rkt
+++ b/lists-sicp.rkt
@@ -1,7 +1,7 @@
 #reader(lib"read.ss""wxme")WXME0108 ## 
 #|
    This file uses the GRacket editor format.
-   Open this file in DrRacket version 6.6 or later to read it.
+   Open this file in DrRacket version 6.5 or later to read it.
 
    Most likely, it was created by saving a program in DrRacket,
    and it probably contains a program with non-text elements
@@ -14,12 +14,7 @@
 1 1 8 #"wximage\0"
 2 0 8 #"wxmedia\0"
 4 1 34 #"(lib \"syntax-browser.ss\" \"mrlib\")\0"
-1 0 36 #"(lib \"cache-image-snip.ss\" \"mrlib\")\0"
-1 0 68
-(
- #"((lib \"image-core.ss\" \"mrlib\") (lib \"image-core-wxme.rkt\" \"mr"
- #"lib\"))\0"
-) 1 0 16 #"drscheme:number\0"
+1 0 16 #"drscheme:number\0"
 3 0 44 #"(lib \"number-snip.ss\" \"drscheme\" \"private\")\0"
 1 0 36 #"(lib \"comment-snip.ss\" \"framework\")\0"
 1 0 93
@@ -28,7 +23,12 @@
  #"pclass-wxme.ss\" \"framework\"))\0"
 ) 0 0 43 #"(lib \"collapsed-snipclass.ss\" \"framework\")\0"
 0 0 19 #"drscheme:sexp-snip\0"
-0 0 29 #"drscheme:bindings-snipclass%\0"
+0 0 36 #"(lib \"cache-image-snip.ss\" \"mrlib\")\0"
+1 0 68
+(
+ #"((lib \"image-core.ss\" \"mrlib\") (lib \"image-core-wxme.rkt\" \"mr"
+ #"lib\"))\0"
+) 1 0 29 #"drscheme:bindings-snipclass%\0"
 1 0 101
 (
  #"((lib \"ellipsis-snip.rkt\" \"drracket\" \"private\") (lib \"ellipsi"
@@ -55,12 +55,12 @@
 1 0 10 #"text-box%\0"
 1 0 32 #"(lib \"text-snipclass.ss\" \"xml\")\0"
 1 0 1 6 #"wxloc\0"
-          0 0 89 0 1 #"\0"
+          0 0 93 0 1 #"\0"
 0 75 1 #"\0"
 0 10 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 0 9
 #"Standard\0"
-0 75 17 #"DejaVu Sans Mono\0"
-0 11 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 2 1
+0 75 12 #"Courier New\0"
+0 10 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 2 1
 #"\0"
 0 -1 1 #"\0"
 1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 -1 -1 2 24
@@ -93,23 +93,23 @@
 1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 34 139 34 0 0 0 -1
 -1 2 1 #"\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 192 192 192 0 0 0 -1 -1 2
 37 #"framework:syntax-color:scheme:symbol\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 192 192 192 0 0 0 -1 -1 2
 1 #"\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 128 0 0 0 0 -1 -1 2 38
-#"framework:syntax-color:scheme:keyword\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 102 102 255 0 0 0 -1 -1 2
+38 #"framework:syntax-color:scheme:keyword\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 128 0 0 0 0 -1 -1 2 1
-#"\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 102 102 255 0 0 0 -1 -1 2
+1 #"\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 131 131 131 0 0 0 -1 -1 2
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 249 148 40 0 0 0 -1 -1 2
 38 #"framework:syntax-color:scheme:comment\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 131 131 131 0 0 0 -1 -1 2
-1 #"\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 249 148 40 0 0 0 -1 -1 2 1
+#"\0"
 0 -1 1 #"\0"
 1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 51 174 51 0 0 0 -1 -1 2 37
 #"framework:syntax-color:scheme:string\0"
@@ -138,8 +138,11 @@
 1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 0 0 0 0 0 -1 -1 2 36
 #"framework:syntax-color:scheme:error\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 0 0 0 0 0 -1 -1 2 36
-#"framework:syntax-color:scheme:other\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 0 0 0 0 0 -1 -1 2 1
+#"\0"
+0 -1 1 #"\0"
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
+36 #"framework:syntax-color:scheme:other\0"
 0 -1 1 #"\0"
 1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
 16 #"Misspelled Text\0"
@@ -187,12 +190,9 @@
 49 #"drracket:check-syntax:both-obligation-style-pref\0"
 0 -1 1 #"\0"
 1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 240 230 140 0 0 0 -1 -1 2
-1 #"\0"
-0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
 26 #"plt:htdp:test-coverage-on\0"
 0 -1 1 #"\0"
-1 0 -1 -1 -1 93 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
+1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 255 255 0 0 0 -1 -1 2
 1 #"\0"
 0 -1 1 #"\0"
 1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 1 0 0 0 0 0 0 205 92 92 0 0 0 -1 -1 2 27
@@ -212,8 +212,8 @@
 0 -1 1 #"\0"
 1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 1 0 0 0 0 0 0 205 92 92 0 0 0 -1 -1 0 1
 #"\0"
-0 75 17 #"DejaVu Sans Mono\0"
-0.0 11 90 -1 90 -1 3 -1 0 1 0 1 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0 255
+0 75 12 #"Courier New\0"
+0.0 10 90 -1 90 -1 3 -1 0 1 0 1 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0 255
 255 255 1 -1 2 1 #"\0"
 0 -1 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 1 0.0 0.0 0.0 0.0 0.0 0.0 255 255 255
@@ -229,6 +229,18 @@
 0 0 -1 -1 2 1 #"\0"
 0 -1 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0.0 0.0 0.0 1.0 1.0 1.0 255 255 255
+0 0 0 -1 -1 0 1 #"\0"
+0 75 17 #"DejaVu Sans Mono\0"
+0.0 11 90 -1 90 -1 3 -1 0 1 0 1 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0 255
+255 255 1 -1 2 1 #"\0"
+0 -1 1 #"\0"
+1.0 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0.0 0.0 0.0 1.0 1.0 1.0 255 128 0 0
+0 0 -1 -1 2 1 #"\0"
+0 -1 1 #"\0"
+1.0 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0.0 0.0 0.0 1.0 1.0 1.0 131 131 131
+0 0 0 -1 -1 2 1 #"\0"
+0 -1 1 #"\0"
+1.0 0 -1 -1 -1 93 -1 -1 0 0 0 0 0 0 0.0 0.0 0.0 1.0 1.0 1.0 255 255 255
 0 0 0 -1 -1 4 1 #"\0"
 0 71 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
@@ -254,7 +266,7 @@
 #"macro-debugger/syntax-browser/properties color-text% basic\0"
 0 70 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
--1 -1 66 1 #"\0"
+-1 -1 70 1 #"\0"
 0 -1 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0.0 0.0 0.0 1.0 1.0 1.0 190 190 190
 0 0 0 -1 -1 4 1 #"\0"
@@ -320,7 +332,7 @@
 30 3 0 -1 -1 4 1 #"\0"
 0 -1 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 1 0.0 0.0 0.0 0.0 0.0 0.0 255 255 255
-0 31 31 -1 -1           0 1052 0 29 3 12 #"#lang racket"
+0 31 31 -1 -1           0 1397 0 30 3 12 #"#lang racket"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
 0 0 16 3 6 #"define"
@@ -477,7 +489,7 @@
 0 0 26 29 1 #"\n"
 0 0 23 3 1 #"4"
 0 0 26 29 1 #"\n"
-0 0 26 29 1 #"\n"
+0 7         253 4           0 0           0 41 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
 0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
@@ -518,7 +530,7 @@
 0 0 26 3 20 #"                    "
 0 0 14 3 5 #"list2"
 0 0 26 3 4 #"))))"
-0 0 26 29 1 #"\n"
+0           0 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
 0 0 14 3 6 #"append"
@@ -633,80 +645,130 @@
 0 0 26 3 1 #")"
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
-0 9         409 4           0 0           0 67 0 26 3 1 #"("
+0 0 26 3 1 #"("
 0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
-0 0 14 3 7 #"reverse"
+0 0 14 3 10 #"my-reverse"
 0 0 26 3 1 #" "
 0 0 14 3 4 #"list"
 0 0 26 3 1 #")"
 0 0 26 29 1 #"\n"
 0 0 26 3 3 #"  ("
 0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 4 #"iter"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"list"
+0 0 26 3 1 #" "
+0 0 14 3 3 #"end"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 5 #"    ("
+0 0 16 3 4 #"cond"
+0 0 26 29 1 #"\n"
+0 0 26 3 8 #"      [("
+0 0 14 3 5 #"null?"
 0 0 26 3 1 #" "
-0 0 14 3 3 #"len"
+0 0 14 3 4 #"list"
+0 0 26 3 2 #") "
+0 0 14 3 3 #"end"
+0 0 26 3 1 #"]"
+0 0 26 29 1 #"\n"
+0 0 26 3 7 #"      ["
+0 0 14 3 4 #"else"
 0 0 26 3 2 #" ("
-0 0 14 3 6 #"length"
+0 0 14 3 4 #"iter"
+0 0 26 3 2 #" ("
+0 0 14 3 3 #"cdr"
 0 0 26 3 1 #" "
 0 0 14 3 4 #"list"
-0 0 26 3 2 #"))"
+0 0 26 3 3 #") ("
+0 0 14 3 4 #"cons"
+0 0 26 3 2 #" ("
+0 0 14 3 3 #"car"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"list"
+0 0 26 3 2 #") "
+0 0 14 3 3 #"end"
+0 0 26 3 5 #"))]))"
 0 0 26 29 1 #"\n"
 0 0 26 3 3 #"  ("
-0 0 16 3 6 #"define"
-0 0 26 3 2 #" ("
-0 0 14 3 11 #"reverse-rec"
+0 0 14 3 4 #"iter"
 0 0 26 3 1 #" "
 0 0 14 3 4 #"list"
 0 0 26 3 1 #" "
-0 0 14 3 1 #"l"
+0 0 23 3 1 #"'"
+0 0 26 3 4 #"()))"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 11 #"rec-reverse"
+0 0 26 3 1 #" "
+0 0 14 3 3 #"lat"
 0 0 26 3 1 #")"
 0 0 26 29 1 #"\n"
-0 0 26 3 5 #"    ("
+0 0 26 3 3 #"  ("
 0 0 14 3 2 #"if"
 0 0 26 3 1 #"("
-0 0 14 3 1 #"="
-0 0 26 3 1 #" "
-0 0 14 3 1 #"l"
+0 0 14 3 5 #"null?"
 0 0 26 3 1 #" "
-0 0 23 3 1 #"0"
+0 0 14 3 3 #"lat"
 0 0 26 3 1 #")"
 0 0 26 29 1 #"\n"
-0 0 26 3 7 #"       "
+0 0 26 3 5 #"     "
 0 0 23 3 1 #"'"
 0 0 26 3 2 #"()"
 0 0 26 29 1 #"\n"
-0 0 26 3 8 #"       ("
-0 0 14 3 4 #"cons"
+0 0 26 3 5 #"    ("
+0 0 14 3 6 #"append"
 0 0 26 3 2 #" ("
-0 0 14 3 8 #"list-ref"
-0 0 26 3 1 #" "
-0 0 14 3 1 #"l"
-0 0 26 3 2 #")("
-0 0 14 3 11 #"reverse-rec"
-0 0 26 3 1 #" "
-0 0 14 3 4 #"list"
+0 0 14 3 11 #"rec-reverse"
 0 0 26 3 2 #" ("
-0 0 14 3 1 #"-"
+0 0 14 3 3 #"cdr"
 0 0 26 3 1 #" "
-0 0 14 3 1 #"l"
+0 0 14 3 3 #"lat"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
+0 0 26 3 17 #"                ("
+0 0 14 3 4 #"list"
+0 0 26 3 1 #"("
+0 0 14 3 3 #"car"
 0 0 26 3 1 #" "
-0 0 23 3 1 #"1"
+0 0 14 3 3 #"lat"
 0 0 26 3 5 #")))))"
 0 0 26 29 1 #"\n"
-0 0 26 3 2 #"  "
-0 0 14 3 11 #"reverse-rec"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 14 3 7 #"display"
 0 0 26 3 1 #" "
+0 0 20 3 18 #"\"my reverse list \""
+0 0 26 3 2 #")("
+0 0 14 3 10 #"my-reverse"
+0 0 26 3 2 #" ("
 0 0 14 3 4 #"list"
 0 0 26 3 1 #" "
-0 0 14 3 3 #"len"
-0 0 26 3 1 #")"
-0           0 0 0 26 29 1 #"\n"
+0 0 23 3 1 #"1"
+0 0 26 3 1 #" "
+0 0 23 3 1 #"4"
+0 0 26 3 1 #" "
+0 0 23 3 1 #"9"
+0 0 26 3 1 #" "
+0 0 23 3 2 #"16"
+0 0 26 3 1 #" "
+0 0 23 3 2 #"25"
+0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
-0 0 14 3 7 #"reverse"
+0 0 14 3 7 #"display"
+0 0 26 3 1 #" "
+0 0 20 3 19 #"\"rec reverse list \""
+0 0 26 3 2 #")("
+0 0 14 3 11 #"rec-reverse"
 0 0 26 3 2 #" ("
 0 0 14 3 4 #"list"
-0 0 26 3 1 #" "
+0 0 26 3 2 #"  "
 0 0 23 3 1 #"1"
 0 0 26 3 1 #" "
 0 0 23 3 1 #"4"
@@ -718,18 +780,58 @@
 0 0 23 3 2 #"25"
 0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 14 3 4 #"cons"
+0 0 26 3 2 #" ("
+0 0 14 3 4 #"cons"
+0 0 26 3 1 #" "
+0 0 23 3 1 #"3"
+0 0 26 29 1 #"\n"
+0 0 26 3 13 #"            ("
+0 0 14 3 4 #"cons"
+0 0 26 3 1 #" "
+0 0 23 3 1 #"2"
+0 0 26 3 1 #" "
 0 0 23 3 1 #"'"
+0 0 26 3 4 #"()))"
+0 0 26 29 1 #"\n"
+0 0 26 3 7 #"      ("
+0 0 14 3 4 #"cons"
+0 0 26 3 1 #" "
+0 0 23 3 2 #"1'"
+0 0 26 3 4 #"()))"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
-0 0 23 3 2 #"25"
+0 0 14 3 4 #"cons"
 0 0 26 3 1 #" "
-0 0 23 3 2 #"16"
+0 0 23 3 1 #"3"
+0 0 26 29 1 #"\n"
+0 0 26 3 13 #"            ("
+0 0 14 3 4 #"cons"
 0 0 26 3 1 #" "
-0 0 23 3 1 #"9"
+0 0 23 3 1 #"2"
 0 0 26 3 1 #" "
-0 0 23 3 1 #"4"
+0 0 26 29 1 #"\n"
+0 0 26 3 7 #"      ("
+0 0 14 3 4 #"cons"
 0 0 26 3 1 #" "
-0 0 23 3 1 #"1"
-0 0 26 3 1 #")"
+0 0 23 3 2 #"1'"
+0 0 26 3 5 #"())))"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 14 3 4 #"cons"
+0 0 26 3 2 #"  "
+0 0 23 3 2 #"16"
+0 0 26 3 2 #" ("
+0 0 14 3 4 #"cons"
+0 0 26 3 1 #" "
+0 0 23 3 2 #"25"
+0 0 26 3 1 #" "
+0 0 23 3 1 #"'"
+0 0 26 3 4 #"()))"
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
@@ -941,7 +1043,7 @@
 0 0 26 3 1 #" "
 0 0 14 3 4 #"seed"
 0 0 26 3 1 #" "
-0 0 29 3 1 #"."
+0 0 30 3 1 #"."
 0 0 26 3 1 #" "
 0 0 14 3 4 #"nums"
 0 0 26 3 1 #")"
@@ -1047,7 +1149,7 @@
 0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
-0 9         211 4           0 0           0 34 0 26 3 1 #"("
+0 7         211 4           0 0           0 34 0 26 3 1 #"("
 0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
 0 0 14 3 11 #"square-list"
@@ -1083,7 +1185,7 @@
 0 0 26 3 5 #")))))"
 0           0 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
-0 9          97 4           0 0           0 15 0 26 3 1 #"("
+0 7          97 4           0 0           0 15 0 26 3 1 #"("
 0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
 0 0 14 3 11 #"square-list"
@@ -1162,7 +1264,7 @@
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
-0 9         313 4           0 0           0 51 0 26 3 1 #"("
+0 7         313 4           0 0           0 51 0 26 3 1 #"("
 0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
 0 0 14 3 11 #"square-list"
@@ -1219,7 +1321,7 @@
  #";reverses because iteratively we act on the car first but it also ge"
  #"ts cons'ed first. "
 ) 0 0 26 29 1 #"\n"
-0 9         361 4           0 0           0 59 0 26 3 1 #"("
+0 7         361 4           0 0           0 59 0 26 3 1 #"("
 0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
 0 0 14 3 11 #"square-list"
@@ -1452,7 +1554,7 @@
 0 0 26 3 6 #"))))))"
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
-0 0 26 3 1 #"("
+0 7         109 4           0 0           0 17 0 26 3 1 #"("
 0 0 14 3 12 #"count-leaves"
 0 0 26 3 1 #"("
 0 0 14 3 4 #"list"
@@ -1469,9 +1571,9 @@
 0 0 26 3 1 #" "
 0 0 23 3 1 #"4"
 0 0 26 3 4 #"))))"
+0           0 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
-0 0 26 29 1 #"\n"
-0 0 26 3 1 #"("
+0 7         457 4           0 0           0 75 0 26 3 1 #"("
 0 0 14 3 3 #"car"
 0 0 26 3 1 #"("
 0 0 14 3 3 #"cdr"
@@ -1546,7 +1648,7 @@
 0 0 26 3 1 #" "
 0 0 23 3 1 #"7"
 0 0 26 3 18 #"))))))))))))))))))"
-0 0 26 29 1 #"\n"
+0           0 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
 0 0 16 3 6 #"define"
@@ -1576,7 +1678,7 @@
 0 0 23 3 1 #"6"
 0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
-0 0 26 3 1 #"("
+0 7         145 4           0 0           0 23 0 26 3 1 #"("
 0 0 14 3 6 #"append"
 0 0 26 3 1 #" "
 0 0 14 3 1 #"x"
@@ -1599,4 +1701,345 @@
 0 0 26 3 1 #" "
 0 0 14 3 1 #"y"
 0 0 26 3 1 #")"
+0           0 0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 12 #"deep-reverse"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 3 #"  ("
+0 0 16 3 4 #"cond"
+0 0 26 29 1 #"\n"
+0 0 26 3 6 #"    [("
+0 0 14 3 5 #"null?"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 1 #")"
+0 0 23 3 1 #"'"
+0 0 26 3 3 #"()]"
+0 0 26 29 1 #"\n"
+0 0 26 3 6 #"    [("
+0 0 14 3 5 #"pair?"
+0 0 26 3 2 #" ("
+0 0 14 3 3 #"car"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
+0 0 26 3 6 #"     ("
+0 0 14 3 6 #"append"
+0 0 26 3 2 #" ("
+0 0 14 3 12 #"deep-reverse"
+0 0 26 3 1 #"("
+0 0 14 3 3 #"cdr"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
+0 0 26 3 14 #"             ("
+0 0 14 3 4 #"list"
+0 0 26 3 1 #"("
+0 0 14 3 12 #"deep-reverse"
+0 0 26 3 1 #"("
+0 0 14 3 3 #"car"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 5 #"))))]"
+0 0 26 29 1 #"\n"
+0 0 26 3 5 #"    ["
+0 0 14 3 4 #"else"
+0 0 26 3 1 #" "
+0 0 26 29 1 #"\n"
+0 0 26 3 6 #"     ("
+0 0 14 3 6 #"append"
+0 0 26 3 2 #" ("
+0 0 14 3 12 #"deep-reverse"
+0 0 26 3 2 #" ("
+0 0 14 3 3 #"cdr"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
+0 0 26 3 14 #"             ("
+0 0 14 3 4 #"list"
+0 0 26 3 2 #" ("
+0 0 14 3 3 #"car"
+0 0 26 3 1 #" "
+0 0 14 3 1 #"x"
+0 0 26 3 4 #")))]"
+0 0 26 29 1 #"\n"
+0 0 26 3 6 #"    ))"
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+0 0 26 3 5 #"     "
+0 0 18 3 21 #";car itself is a pair"
+0 0 26 29 1 #"\n"
+0 0 26 3 6 #"     ("
+0 0 14 3 6 #"append"
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+0 0 26 3 2 #" ("
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+0 0 14 3 1 #"x"
+0 0 26 3 3 #")))"
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+0 0 14 3 1 #"x"
+0 0 26 3 5 #"))))]"
+0 0 26 29 1 #"\n"
+0 0 26 3 5 #"    ["
+0 0 14 3 4 #"else"
+0 0 26 29 1 #"\n"
+0 0 26 3 5 #"     "
+0 0 18 3 30 #";car itself is an atom in list"
+0 0 26 29 1 #"\n"
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+0 0 26 3 1 #" "
+0 0 23 3 1 #"4"
+0 0 26 3 4 #"))))"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 14 3 6 #"fringe"
+0 0 26 3 2 #" ("
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+0 0 14 3 1 #"v"
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 0           0

From 0777b8188aae25502fd503c5d14212b65ad984d5 Mon Sep 17 00:00:00 2001
From: jwilliamson1 <joseph.williamson15@gmail.com>
Date: Mon, 1 Jan 2018 21:46:00 -0500
Subject: [PATCH 3/3] work on mobile

---
 lists-sicp.rkt | 875 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 817 insertions(+), 58 deletions(-)

diff --git a/lists-sicp.rkt b/lists-sicp.rkt
index 98cabd3..dc3a199 100644
--- a/lists-sicp.rkt
+++ b/lists-sicp.rkt
@@ -332,7 +332,29 @@
 30 3 0 -1 -1 4 1 #"\0"
 0 -1 1 #"\0"
 1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 1 0.0 0.0 0.0 0.0 0.0 0.0 255 255 255
-0 31 31 -1 -1           0 1397 0 30 3 12 #"#lang racket"
+0 31 31 -1 -1           0 2150 0 30 3 12 #"#lang racket"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 3 #"dis"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"text"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 2 #"  "
+0 0 26 29 1 #"\n"
+0 0 26 3 3 #"  ("
+0 0 14 3 7 #"display"
+0 0 26 3 1 #" "
+0 0 14 3 4 #"text"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 3 #"  ("
+0 0 14 3 7 #"newline"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
 0 0 16 3 6 #"define"
@@ -1828,34 +1850,30 @@
 0 0 23 3 2 #"13"
 0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
-0 0 14 3 1 #"z"
+0 0 18 3 2 #";z"
 0 0 26 29 1 #"\n"
-0 0 26 3 1 #"("
-0 0 14 3 12 #"deep-reverse"
-0 0 26 3 1 #" "
-0 0 14 3 1 #"z"
-0 0 26 3 2 #")("
-0 0 14 3 7 #"display"
-0 0 26 3 1 #" "
-0 0 20 3 14 #"\"deep reverse\""
-0 0 26 3 1 #")"
+0 0 18 3 2 #";("
+0 0 18 3 12 #"deep-reverse"
+0 0 18 3 1 #" "
+0 0 18 3 1 #"z"
+0 0 18 3 2 #")("
+0 0 18 3 7 #"display"
+0 0 18 3 1 #" "
+0 0 18 3 15 #"\"deep reverse\")"
 0 0 26 29 1 #"\n"
 0 0 18 3 2 #";("
 0 0 18 3 5 #"pair?"
 0 0 18 3 2 #" ("
 0 0 18 3 3 #"cdr"
-0 0 18 3 1 #" "
-0 0 18 3 3 #"z))"
+0 0 18 3 4 #" z))"
 0 0 26 29 1 #"\n"
 0 0 18 3 2 #";("
 0 0 18 3 3 #"cdr"
-0 0 18 3 1 #" "
-0 0 18 3 2 #"z)"
+0 0 18 3 3 #" z)"
 0 0 26 29 1 #"\n"
 0 0 18 3 2 #";("
 0 0 18 3 7 #"reverse"
-0 0 18 3 1 #" "
-0 0 18 3 2 #"z)"
+0 0 18 3 3 #" z)"
 0 0 26 29 1 #"\n"
 0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
@@ -1885,19 +1903,19 @@
 0 0 14 3 1 #"x"
 0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
-0 0 26 3 6 #"     ("
-0 0 14 3 7 #"newline"
-0 0 26 3 1 #")"
+0 0 26 3 5 #"     "
+0 0 18 3 2 #";("
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-0 0 26 3 6 #"     ("
-0 0 14 3 7 #"display"
-0 0 26 3 2 #" ("
-0 0 14 3 4 #"cons"
-0 0 26 3 1 #" "
-0 0 20 3 12 #"\" not pair:\""
-0 0 26 3 1 #" "
-0 0 14 3 1 #"x"
-0 0 26 3 2 #"))"
+0 0 26 3 5 #"     "
+0 0 18 3 2 #";("
+0 0 18 3 7 #"display"
+0 0 18 3 2 #" ("
+0 0 18 3 4 #"cons"
+0 0 18 3 1 #" "
+0 0 18 3 12 #"\" not pair:\""
+0 0 18 3 1 #" "
+0 0 18 3 3 #"x))"
 0 0 26 29 1 #"\n"
 0 0 26 3 6 #"     ("
 0 0 14 3 4 #"list"
@@ -1913,19 +1931,19 @@
 0 0 14 3 1 #"x"
 0 0 26 3 2 #"))"
 0 0 26 29 1 #"\n"
-0 0 26 3 6 #"     ("
-0 0 14 3 7 #"newline"
-0 0 26 3 1 #")"
+0 0 26 3 5 #"     "
+0 0 18 3 2 #";("
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 0 0 26 29 1 #"\n"
-0 0 26 3 6 #"     ("
-0 0 14 3 7 #"display"
-0 0 26 3 2 #" ("
-0 0 14 3 4 #"cons"
-0 0 26 3 1 #" "
-0 0 20 3 12 #"\" car pair:\""
-0 0 26 3 1 #" "
-0 0 14 3 1 #"x"
-0 0 26 3 2 #"))"
+0 0 26 3 5 #"     "
+0 0 18 3 2 #";("
+0 0 18 3 7 #"display"
+0 0 18 3 2 #" ("
+0 0 18 3 4 #"cons"
+0 0 18 3 1 #" "
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+0 0 18 3 1 #" "
+0 0 18 3 3 #"x))"
 0 0 26 29 1 #"\n"
 0 0 26 3 5 #"     "
 0 0 18 3 21 #";car itself is a pair"
@@ -1968,21 +1986,20 @@
 0 0 26 3 5 #"     "
 0 0 18 3 30 #";car itself is an atom in list"
 0 0 26 29 1 #"\n"
-0 0 26 3 6 #"     ("
-0 0 14 3 7 #"newline"
-0 0 26 3 1 #")"
+0 0 26 3 5 #"     "
+0 0 18 3 2 #";("
+0 0 18 3 8 #"newline)"
 0 0 26 29 1 #"\n"
-0 0 26 3 6 #"     ("
-0 0 14 3 7 #"display"
-0 0 26 3 2 #" ("
-0 0 14 3 4 #"cons"
-0 0 26 3 1 #" "
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-0 0 20 3 1 #" "
-0 0 20 3 6 #"else:\""
-0 0 26 3 1 #" "
-0 0 14 3 1 #"x"
-0 0 26 3 2 #"))"
+0 0 26 3 5 #"     "
+0 0 18 3 2 #";("
+0 0 18 3 7 #"display"
+0 0 18 3 2 #" ("
+0 0 18 3 4 #"cons"
+0 0 18 3 1 #" "
+0 0 18 3 1 #"\""
+0 0 18 3 7 #" else:\""
+0 0 18 3 1 #" "
+0 0 18 3 3 #"x))"
 0 0 26 29 1 #"\n"
 0 0 26 3 6 #"     ("
 0 0 14 3 4 #"cons"
@@ -2033,13 +2050,755 @@
 0 0 23 3 1 #"4"
 0 0 26 3 4 #"))))"
 0 0 26 29 1 #"\n"
+0 0 18 3 2 #";("
+0 0 18 3 6 #"fringe"
+0 0 18 3 2 #" ("
+0 0 18 3 4 #"list"
+0 0 18 3 1 #" "
+0 0 18 3 1 #"v"
+0 0 18 3 1 #" "
+0 0 18 3 3 #"v))"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 18 3 33 #";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;"
+0 0 26 29 1 #"\n"
+0 0 18 3 15 #";binary mobiles"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
 0 0 26 3 1 #"("
-0 0 14 3 6 #"fringe"
+0 0 16 3 6 #"define"
 0 0 26 3 2 #" ("
+0 0 14 3 11 #"make-mobile"
+0 0 26 3 1 #" "
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+0 0 14 3 5 #"right"
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 0 0 14 3 4 #"list"
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 0 0 26 3 1 #" "
-0 0 14 3 1 #"v"
+0 0 14 3 5 #"right"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 11 #"make-branch"
+0 0 26 3 1 #" "
+0 0 14 3 6 #"length"
+0 0 26 3 1 #" "
+0 0 14 3 9 #"structure"
+0 0 26 3 1 #")"
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+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 11 #"left-branch"
+0 0 26 3 1 #" "
+0 0 14 3 6 #"mobile"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 3 #"  ("
+0 0 14 3 3 #"car"
+0 0 26 3 1 #" "
+0 0 14 3 6 #"mobile"
+0 0 26 3 2 #"))"
+0 0 26 29 1 #"\n"
+0 0 26 29 1 #"\n"
+0 0 26 3 1 #"("
+0 0 16 3 6 #"define"
+0 0 26 3 2 #" ("
+0 0 14 3 12 #"right-branch"
+0 0 26 3 1 #" "
+0 0 14 3 6 #"mobile"
+0 0 26 3 1 #")"
+0 0 26 29 1 #"\n"
+0 0 26 3 3 #"  ("
+0 0 14 3 4 #"cadr"
+0 0 26 3 1 #" "
+0 0 14 3 6 #"mobile"
+0 0 26 3 2 #"))"
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+0 0 26 3 1 #"("
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+0 0 14 3 13 #"branch-length"
+0 0 26 3 1 #" "
+0 0 14 3 6 #"branch"
+0 0 26 3 1 #")"
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+0 0 26 3 3 #"  ("
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+0 0 26 3 4 #"))))"
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