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"c ((3*:t*:t)*(1-:t)) make "d (:t^3) setxy ((:x1*:a)+(:x2*:b)+(:x3*:c)+(:x4*:d)) 
((:y1*:a)+(:y2*:b)+(:y3*:c)+(:y4*:d)) ] end setxy 0 161 filled 7 [ kc 8 132 
106 116 98 kc 130 92 138 90 130 86 kc 107 84 98 60 84 71 kc 
44 134 66 118 kc 85 111 91 98 101 87 kc 109 87 110 91 112 93 kc 96 102 102 
92 71 99 75 87 76 kc 75 75 72 58 106 46 kc 134 32 149 17 151 6 
ht setpensize 1 setbg 7 cs filled [92 9 12] [ fd 220 setxy 240 0 home ]
kc 128 25 102 46 66 49 kc 72 70 62 91 39 108 kc 20 119 8 131 0 146 ]
mbz 99 -90 104 -125 82 -140 58 -133 pu setxy 229 -194 
repeat 21 [ make "t ((#-1)/20) make "a ((1-:t)^3) make "b ((3*:t)*(1-:t)*(1-:t)) make 
setpencolor 7 to kc :x2 :y2 :x3 :y3 :x4 :y4 make "x1 xcor make "y1 ycor 
 

((:y1*:a)+(:y2*:b)+(:y3*:c)+(:y4*:d)) ] end pu setxy 136 98 filled 7 [ cv 160 0 100 
-140 -90 cv -117 -84 -53 -62 -14 -25 cv 36 18 88 87 97 141 ]
-26 setxy 103 129 setxy -135 -95 ] to cv :x2 :y2 :x3 :y3 :x4 :y4 make "x1 xcor make "y1 
-32 29 -58 cv -26 -73 -84 -81 -135 -100 setxy 
154 -140 179 -120 bz 172 -147 185 -155 195 -160 ] pu setxy 138 2 pd setxy 160 -8 
[11 31 64] [ seth 50 arc 185 165 ] pu setxy -135 -95 filled 8 [ setxy 29 
ht cs setpensize 1 setbg 7 setpalette 8 [93 7 18] filled 8 [ arc 360 165 ] filled
make "c ((3*:t*:t)*(1-:t)) make "d (:t^3) setxy ((:x1*:a)+(:x2*:b)+(:x3*:c)+(:x4*:d))
ycor repeat 21 [ make "t ((#-1)/20) make "a ((1-:t)^3) make "b ((3*:t)*(1-:t)*(1-:t)) 
 

((:y1*:a)+(:y2*:b)+(:y3*:c)+(:y4*:d)) ] end setbg 7 setpencolor 
(pos) pd filled 8 [ fd 180 seth 180 fd 110 setpos (pop "s) ] pu home 
200 0 ] pu setxy 200 0 seth -30 fd 20 push "s (pos) pd filled 9 
8 [ fd 100 lt 90 fd 40 setxy 0 0 ] pu home rt 30 fd 20 push "s 
[ fd 180 seth 180 fd 110 setpos (pop "s) ]
cs ht setbg 7 make "s [] setpalette 8 [88 10 20] setpencolor 8 setpensize 1 rt 90 filled
seth 90 fd 200 setpalette 9 [60 10 20] setpencolor 9 pd filled 9 [ back 100 lt 90 fd 40 setxy 
 

(45/cos 15) lt 15 ] home fd 23 rt 90 fd 70 lt 90 repeat 2
0 [ arc 360 125 ] home repeat 3 [ xx rt 15 fd (45/cos 15) lt 15
15) fd 30 lt 90 fd 15 pd filled 7 [ arc 180 15 ] pu bk 15 lt 90 fd (30*
21 [ make "t ((#-1)/20) make "a ((1-:t)^3) make "b ((3*:t)*(1-:t)*(1-:t)) 
90 fd 30 rt 90 fd 30 fd (30*sin 15) rt 90 ] pu rt 90 fd (30*sin
[ xx rt 15 fd (42/cos 15) lt 15 ]
] home fd 45 lt 90 fd 55 rt 90 repeat 2 [ xx rt 15 fd
cs ht setbg 7 to xx filled 7 [ pd rt 15 fd (30/cos 15) rt 75 fd 30 rt
sin 15) fd 30 rt 90 end setpensize 1 setpencolor 7 pu setxy 35 58 filled
 

-12 setxy -5 -50 setxy -42 -15 ] setxy -43 -50 setpencolor 0 filled 0 [
150 ] pu setxy 50 40 pd filled 7 [ arc 360 27 ] setpencolor 7 
185 -211 162 -222 bz 110 -245 35 -264 23 -234 bz 5 -248 -25 -320 50 -320 bz 130 -320
40 ] setxy -42 -15 filled 7 [ setxy -42 -15 setxy -3 40 setxy 50
arc 360 30 ] pu setxy -43 -50 setpencolor 7 pd setpensize 40 setxy -160 0
cs setbg 7 setpensize 1 setpencolor 0 ht filled 0 [ arc 360 
setpensize 18 arc 360 45 pu setpensize 1 setxy -43 -50 pd filled 7 [ arc 360
 

-6 setxy 124 -22 setxy -52 -23 setxy -20 0 setxy -122 6 ]
227 -130 195 -160 filled 0 [ bz 154 -205 114 -168 96 -121 mbz 98 -113 125 -135
pu setxy -122 22 pd filled 0 [ setxy 54 23 setxy 22 -2 setxy 124 
setpencolor 0 setbg 7 ht cs setpensize 10 arc 360 90 setpensize 1 
 

-80 -76 -80 -26 bz -80 31 -21 17 0 0 bz 35 -22 39 -70 38 -82 pu setxy 100 -30 pd setxy 110 -12 
fd 50 lt 60 fd 50 lt 120 fd 50 lt 60 fd 50 ] pu bk 150 ] 
ht setbg 7 cs rt 90 setpalette 8 [90 0 7] setpencolor 8 repeat 3 [ filled 8 [ 
 

0 to mbz :x1 :y1 :x2 :y2 :x3 :y3 :x4 :y4 pu setxy :x1 :y1 pd bz :x2 :y2 :x3 :y3 
50 0 setpalette 9 [40 20 80] setpencolor 9 filled 9 [ lt 30 pd fd 250 lt 90 fd 86 lt 90 fd 150
8 [ rt 30 pd fd 250 rt 90 fd 86 rt 90 fd 150 lt 120 fd 150 rt 
90 fd 86 rt 90 fd 150 lt 120 fd 150 rt 90 fd 86 rt 90 fd 250 ] pu seth 0 setxy 
rt 120 fd 150 lt 90 fd 86 lt 90 fd 150 rt 120 fd 150 lt 90 fd 86 lt 90 fd 250 ]
setpensize 1 cs ht pu setx -50 setpalette 8 [60 80 0] setpencolor 8 filled 
 

0] setpencolor 8 filled 8 [ arc 360 120 ]
127 -270 215 -256 bz 251 -254 275 -220 229 -194 ] pu setxy 127 -41 pd filled 0 [ arc 360 8 ] 
8 filled 8 [ arc 360 40 ]
ht cs setbg 7 setpensize 1 setpalette 8 [80 0
setpencolor 7 filled 7 [arc 360 80 ] setpencolor
 

1 setpencolor 4 repeat 4 [ setxy (pop "s) (pop "s) seth (pop "s) 
186 -110 154 -110 bz 114 -110 106 -50 159 -50 ] mbz 100 125 100 65
filled 4 [ fd 100 lt 135 fd 70.7 lt 90 fd 70.7 ] ]
make "s [0 0 0 0 0 90 100 100 180 100 100 270 ] cs ht setbg 7 setpensize 
 

100 seth 260 pu fd 100 seth 90 pd fd 90 pu home rt 90 back 10 pe pd fd 120 pu home fd 10 rt 
90 back 10 pd fd 120 pu setxy 50 0 setpensize 10 seth 180 pd fd 40 ppt
ht setpencolor 0 cs setbg 7 setpensize 20 arc 360 100 pu setx 100 pd arc 360 
pd filled (list (ycor+xcor-10)%100 (ycor+27)%100 (xcor+56)%100) [bz 208 -50
 

12 pu lt 90 fd 150 pd rt 180 repeat
4 [ arc 360 75 pu fd 100 pd ]
cs ht setbg 7 setpencolor 0 setpensize
to bz :x2 :y2 :x3 :y3 :x4 :y4 make "x1 xcor make "y1 ycor repeat
 

140 pu rt 90 bk 30 pd arc -90 30 pu lt 90 fd 30 lt 90 ] 
65 filled 0 [ arc 360 15 ] setxy 70 105 seth 270 repeat 4 [ pd fd 
76 56 100 7 mbz 179 -120 200 -99 209 -80 206 -53 mbz 93 149 116 209
cs ht setbg 7 setpencolor 0 setpensize 20 arc 360 50 pu setxy 65 
 

180 200 180 146 bz 180 92 162 78 171 33 bz 225 200 
[ pd fd 100 pu bk 100 rt 90 fd 35 lt 90 ] home pu fd 80 lt 90 fd 60 repeat 2 [ 
filled 0 [ arc 360 30 ] back 330 ]
ht setpencolor 0 setbg 7 cs setpensize 20 repeat 7 
 

185 -211 162 -222 bz 110 -245 35 -264 23 -234 bz 20 -215 -5 -206 -9 -154 bz -17 -70 
7 setpensize 8 pu fd 50 pd bk 90 rt 90 fd 30 pu home rt 90 fd 30 pd fd 50 pu bk 
80 arc 270 80 lt 90 fd 45 lt 90 fd 30 filled 7 [ arc 360 10 ]
setpensize 1 ht cs setbg 7 filled [92 4 37] [ arc 360 100 ] setpencolor 
 

190 25 pu setxy -100 30 seth 45 pd arc -190 25 pu setxy 0 150 seth 170 
60 rt 85 fd 50 pu fd 20 pd arc 360 20 pu setxy 100 30 seth -45 pd arc 
[ setxy (110*(cos #*9)) (70*(sin #*9)) ] pu setxy 0 70 pd rt 15 fd 
cs ht setbg 7 setpencolor 0 pu setpensize 8 setxy 110 0 pd repeat 40
filled 8 [ arc 360 17 ] pu setxy -40 8 pd filled 8 [ arc 360 17 ] 
pd arc 20 190 pu setxy 40 8 pd setpalette 8 [100 27 0] setpencolor 8 
pd filled (list (xcor+70)%100 (ycor-19)%100 (xcor+ycor-20)%100) [ bz 220 -215
 

21 0 seth 55 f [5 69 28] setxy -34 18 seth -56 f [95 44 13] setxy 34 18 seth  
22 f [0 54 82] setxy -32 36 seth -23 f [80 2 30] setxy 32 36 seth -11 f
90 fd 20 rt 20 fd 10 seth -91 repeat 10 [ fd 3 lt 9 ] fd 20]
[39 38 67] setpencolor 7 setxy 0 190 filled 7 [ seth 
fd 44 pd rt 90 fd 150 pu ] end cs ht setbg 7 pu setx -21 lt 90 f [99 72 7] setxy
pu setxy 156 -32 pd filled 0 [arc 360 8] mbz 114 -175 126 -190 129 -198 170 -198 bz 205 -198 
to f :c setpencolor :c filled :c [ pd fd 150 lt 90 pu bk 44 arc 212 44 rt 212 
 

292 152 292 120 bz 292 70 234 60 235 -12 bz 235 -84 270 -84 229 -194 bz 220 -215 
4 [ fd 14 rt 90 fd 14 lt 90 fd 14 lt 90 ]] 
8 [ arc 360 20 ] pu fd 50 ] back 118 lt 90 fd 19 pd filled 8 [ repeat 
90 fd 150 rt 90 fd 28 rt 90 fd 150 ] home pu fd 56 rt 90 repeat 4 [ pd filled
cs setbg 7 setpensize 1 ht setpalette 8 [0 63 89] setpencolor 8 filled 8 [ fd 28 rt
 

80 rt 120 fd 50 rt 60 fd 53 lt 90 fd 20 rt 90 fd 80
ht cs setbg 7 setpencolor 0 setpensize 10 pd fd 20 lt 90 fd 80 
make "c ((3*:t*:t)*(1-:t)) make "d (:t^3) setxy ((:x1*:a)+(:x2*:b)+(:x3*:c)+(:x4*:d))
rt 120 fd 50 rt 60 fd 53 lt 90 fd 20 rt 90 fd 80 rt 90 fd 20 lt 90 fd 
 

:x4 :y4 end cs setpensize 4 ht pd fd 125 lt 90 pu bk 50 arc 180 50 pu setxy 159 -50
rt 90 fd 120 setpalette 8 [100 0 50] setpencolor 8 filled 8 [ arc 360 50 ]
setbg 7 setpensize 1 ht cs setpencolor [0 38 87] filled [0 38 87] [ arc 360 50 ] pu