// Global code will be evaluated once.
// Yup, the turtle is gone...

// The walk function will be called until it returns false.
function walk(i) {
    return false;
}


































































































































// Nothing to see here...






















































// Really, nothing going on here...





























// I saw the Turtle on top!! Quick, go back up!










































// Gogogogogo!!!























































////////////////////////////////////////////////////////////////
// Text utility code. Created by Reinder Nijhoff 2019
// https://turtletoy.net/turtle/1713ddbe99
// Jurgen 2021: Fixed Text.print() to restore turtle._fullCircle
//.             if was in e.g. degrees mode (or any other)
////////////////////////////////////////////////////////////////
function Text() {class Text {print (t, str, scale = 1, italic = 0, kerning = 1) {let fc = t._fullCircle;t.radians();let pos = [t.x(), t.y()], h = t.h(), o = pos;str.split('').map(c => {const i = c.charCodeAt(0) - 32;if (i < 0 ) {pos = o = this.rotAdd([0, 48*scale], o, h);} else if (i > 96 ) {pos = this.rotAdd([16*scale, 0], o, h);} else {const d = dat[i], lt = d[0]*scale, rt = d[1]*scale, paths = d[2];paths.map( p => {t.up();p.map( s=> {t.goto(this.rotAdd([(s[0]-s[1]*italic)*scale - lt, s[1]*scale], pos, h));t.down();});});pos = this.rotAdd([(rt - lt)*kerning, 0], pos, h);}});t._fullCircle = fc;}rotAdd (a, b, h) {return [Math.cos(h)*a[0] - Math.sin(h)*a[1] + b[0], Math.cos(h)*a[1] + Math.sin(h)*a[0] + b[1]];}}const dat = ('br>eoj^jl<jqirjskrjq>brf^fe<n^ne>`ukZdz<qZjz<dgrg<cmqm>`thZhw<lZlw<qao_l^h^e_caccdeefggmiojpkqmqporlshsercp>^vs^as<f^h`hbgdeeceacaab_d^f^h_k`n`q_s^<olmmlolqnspsrrspsnqlol>]wtgtfsereqfphnmlpjrhsdsbraq`o`makbjifjekckaj_h^f_eaecffhimporqssstrtq>eoj`i_j^k_kajcid>cqnZl\\j_hcghglhqjulxnz>cqfZh\\j_lcmhmllqjuhxfz>brjdjp<egom<ogem>]wjajs<ajsj>fnkojpiojnkokqis>]wajsj>fnjniojpkojn>_usZaz>`ti^f_dbcgcjdofrisksnrpoqjqgpbn_k^i^>`tfbhak^ks>`tdcdbe`f_h^l^n_o`pbpdofmicsqs>`te^p^jfmfogphqkqmppnrkshserdqco>`tm^clrl<m^ms>`to^e^dgefhekenfphqkqmppnrkshserdqco>`tpao_l^j^g_ebdgdlepgrjsksnrppqmqlpingkfjfggeidl>`tq^gs<c^q^>`th^e_dadceegfkgnhpjqlqopqorlshserdqcocldjfhigmfoepcpao_l^h^>`tpeohmjjkikfjdhcecddaf_i^j^m_oapepjoomrjshserdp>fnjgihjikhjg<jniojpkojn>fnjgihjikhjg<kojpiojnkokqis>^vrabjrs>]wagsg<amsm>^vbarjbs>asdcdbe`f_h^l^n_o`pbpdofngjijl<jqirjskrjq>]xofndlcicgdfeehekfmhnknmmnk<icgefhfkgmhn<ocnknmpnrntluiugtdsbq`o_l^i^f_d`bbad`g`jambodqfrislsorqqrp<pcokompn>asj^bs<j^rs<elol>_tc^cs<c^l^o_p`qbqdpfoglh<chlhoipjqlqopqorlscs>`urcqao_m^i^g_eadccfckdnepgrismsorqprn>_tc^cs<c^j^m_oapcqfqkpnopmrjscs>`sd^ds<d^q^<dhlh<dsqs>`rd^ds<d^q^<dhlh>`urcqao_m^i^g_eadccfckdnepgrismsorqprnrk<mkrk>_uc^cs<q^qs<chqh>fnj^js>brn^nnmqlrjshsfreqdndl>_tc^cs<q^cl<hgqs>`qd^ds<dsps>^vb^bs<b^js<r^js<r^rs>_uc^cs<c^qs<q^qs>_uh^f_daccbfbkcndpfrhslsnrppqnrkrfqcpan_l^h^>_tc^cs<c^l^o_p`qbqepgohlici>_uh^f_daccbfbkcndpfrhslsnrppqnrkrfqcpan_l^h^<koqu>_tc^cs<c^l^o_p`qbqdpfoglhch<jhqs>`tqao_l^h^e_caccdeefggmiojpkqmqporlshsercp>brj^js<c^q^>_uc^cmdpfrisksnrppqmq^>asb^js<r^js>^v`^es<j^es<j^os<t^os>`tc^qs<q^cs>asb^jhjs<r^jh>`tq^cs<c^q^<csqs>cqgZgz<hZhz<gZnZ<gznz>cqc^qv>cqlZlz<mZmz<fZmZ<fzmz>brj\\bj<j\\rj>asazsz>fnkcieigjhkgjfig>atpeps<phnfleiegfehdkdmepgrislsnrpp>`sd^ds<dhffhekemfohpkpmopmrkshsfrdp>asphnfleiegfehdkdmepgrislsnrpp>atp^ps<phnfleiegfehdkdmepgrislsnrpp>asdkpkpiognfleiegfehdkdmepgrislsnrpp>eqo^m^k_jbjs<gene>atpepuoxnylzizgy<phnfleiegfehdkdmepgrislsnrpp>ate^es<eihfjemeofpips>fni^j_k^j]i^<jejs>eoj^k_l^k]j^<kekvjyhzfz>are^es<oeeo<ikps>fnj^js>[y_e_s<_ibfdegeifjijs<jimfoeretfuius>ateees<eihfjemeofpips>atiegfehdkdmepgrislsnrppqmqkphnfleie>`sdedz<dhffhekemfohpkpmopmrkshsfrdp>atpepz<phnfleiegfehdkdmepgrislsnrpp>cpgegs<gkhhjfleoe>bsphofleieffehfjhkmlompopporlsisfrep>eqj^jokrmsos<gene>ateeeofrhsksmrpo<peps>brdejs<pejs>_ubefs<jefs<jens<rens>bseeps<pees>brdejs<pejshwfydzcz>bspees<eepe<esps>cqlZj[i\\h^h`ibjckekgii<j[i]i_jakbldlfkhgjkllnlpkrjsiuiwjy<ikkmkojqirhthvixjylz>fnjZjz>cqhZj[k\\l^l`kbjcieigki<j[k]k_jaibhdhfihmjilhnhpirjskukwjy<kkimiojqkrltlvkxjyhz>^vamakbhdgfghhlknlplrksi<akbidhfhhillnmpmrlsisg>brb^bscsc^d^dsese^f^fsgsg^h^hsisi^j^jsksk^l^lsmsm^n^nsoso^p^psqsq^r^rs').split('>').map(r=> { return [r.charCodeAt(0)-106,r.charCodeAt(1)-106, r.substr(2).split('<').map(a => {const ret = []; for (let i=0; i<a.length; i+=2) {ret.push(a.substr(i, 2).split('').map(b => b.charCodeAt(0)-106));} return ret; })]; });return new Text();}
////////////////////////////////////////////////////////////////
// Slowbro utility code. Created by Lionel Lemarie 2021
// Based on Slowpoke by Reinder, which removes most duplicate
// lines Slowbro adds optional thickness to the lines
////////////////////////////////////////////////////////////////
function Slowbro(x, y) {const linesDrawn = {};class Slowbro extends Turtle {constructor(x, y) {super(x, y);this.thickness = 1; this.offset = 0.2;this.slowpoke_skip = this.slowpoke_draw = 0;}goto(x, y) {if (Array.isArray(x)) { y = x[1]; x = x[0]; }const ox = this.x(), oy = this.y();if (this.isdown()) {const p = [x, y], o = [ox, oy];const h1 = o[0].toFixed(2) + '_' + p[0].toFixed(2) + o[1].toFixed(2) + '_' + p[1].toFixed(2);const h2 = p[0].toFixed(2) + '_' + o[0].toFixed(2) + p[1].toFixed(2) + '_' + o[1].toFixed(2);if (linesDrawn[h1] || linesDrawn[h2]) {super.up(); super.goto(p); super.down();this.slowpoke_skip++;return;}linesDrawn[h1] = linesDrawn[h2] = true;this.slowpoke_draw++;for (var dx = this.thickness-1; dx >=0 ; dx--) {for (var dy = this.thickness-1; dy >= 0; dy--) {if (!dx && !dy) continue;super.goto( x + dx * this.offset,  y + dy * this.offset);super.goto(ox + dx * this.offset, oy + dy * this.offset);}}} super.goto(x, y);}}return new Slowbro(x, y); }
////////////////////////////////////////////////////////////////
// Polygon Clipping utility code - Created by Reinder Nijhoff 2019
// (Polygon binning by Lionel Lemarie 2021)
// https://turtletoy.net/turtle/a5befa1f8d
////////////////////////////////////////////////////////////////
function Polygons(){const t=[],s=25,e=Array.from({length:s**2},t=>[]),n=class{constructor(){this.cp=[],this.dp=[],this.aabb=[]}addPoints(...t){let s=1e5,e=-1e5,n=1e5,h=-1e5;(this.cp=[...this.cp,...t]).forEach(t=>{s=Math.min(s,t[0]),e=Math.max(e,t[0]),n=Math.min(n,t[1]),h=Math.max(h,t[1])}),this.aabb=[s,n,e,h]}addSegments(...t){t.forEach(t=>this.dp.push(t))}addOutline(){for(let t=0,s=this.cp.length;t<s;t++)this.dp.push(this.cp[t],this.cp[(t+1)%s])}draw(t){for(let s=0,e=this.dp.length;s<e;s+=2)t.jump(this.dp[s]),t.goto(this.dp[s+1])}addHatching(t,s){const e=new n;e.cp.push([-1e5,-1e5],[1e5,-1e5],[1e5,1e5],[-1e5,1e5]);const h=Math.sin(t)*s,o=Math.cos(t)*s,a=200*Math.sin(t),i=200*Math.cos(t);for(let t=.5;t<150/s;t++)e.dp.push([h*t+i,o*t-a],[h*t-i,o*t+a]),e.dp.push([-h*t+i,-o*t-a],[-h*t-i,-o*t+a]);e.boolean(this,!1),this.dp=[...this.dp,...e.dp]}inside(t){let s=0;for(let e=0,n=this.cp.length;e<n;e++)this.segment_intersect(t,[.1,-1e3],this.cp[e],this.cp[(e+1)%n])&&s++;return 1&s}boolean(t,s=!0){const e=[];for(let n=0,h=this.dp.length;n<h;n+=2){const h=this.dp[n],o=this.dp[n+1],a=[];for(let s=0,e=t.cp.length;s<e;s++){const n=this.segment_intersect(h,o,t.cp[s],t.cp[(s+1)%e]);!1!==n&&a.push(n)}if(0===a.length)s===!t.inside(h)&&e.push(h,o);else{a.push(h,o);const n=o[0]-h[0],i=o[1]-h[1];a.sort((t,s)=>(t[0]-h[0])*n+(t[1]-h[1])*i-(s[0]-h[0])*n-(s[1]-h[1])*i);for(let n=0;n<a.length-1;n++)(a[n][0]-a[n+1][0])**2+(a[n][1]-a[n+1][1])**2>=.001&&s===!t.inside([(a[n][0]+a[n+1][0])/2,(a[n][1]+a[n+1][1])/2])&&e.push(a[n],a[n+1])}}return(this.dp=e).length>0}segment_intersect(t,s,e,n){const h=(n[1]-e[1])*(s[0]-t[0])-(n[0]-e[0])*(s[1]-t[1]);if(0===h)return!1;const o=((n[0]-e[0])*(t[1]-e[1])-(n[1]-e[1])*(t[0]-e[0]))/h,a=((s[0]-t[0])*(t[1]-e[1])-(s[1]-t[1])*(t[0]-e[0]))/h;return o>=0&&o<=1&&a>=0&&a<=1&&[t[0]+o*(s[0]-t[0]),t[1]+o*(s[1]-t[1])]}};return{list:()=>t,create:()=>new n,draw:(n,h,o=!0)=>{reducedPolygonList=function(n){const h={},o=200/s;for(var a=0;a<s;a++){const c=a*o-100,r=[0,c,200,c+o];if(!(n[3]<r[1]||n[1]>r[3]))for(var i=0;i<s;i++){const c=i*o-100;r[0]=c,r[2]=c+o,n[0]>r[2]||n[2]<r[0]||e[i+a*s].forEach(s=>{const e=t[s];n[3]<e.aabb[1]||n[1]>e.aabb[3]||n[0]>e.aabb[2]||n[2]<e.aabb[0]||(h[s]=1)})}}return Array.from(Object.keys(h),s=>t[s])}(h.aabb);for(let t=0;t<reducedPolygonList.length&&h.boolean(reducedPolygonList[t]);t++);h.draw(n),o&&function(n){t.push(n);const h=t.length-1,o=200/s;e.forEach((t,e)=>{const a=e%s*o-100,i=(e/s|0)*o-100,c=[a,i,a+o,i+o];c[3]<n.aabb[1]||c[1]>n.aabb[3]||c[0]>n.aabb[2]||c[2]<n.aabb[0]||t.push(h)})}(h)}}}

////////////////////////////////////////////////////////////////
// Bale utility code - Created by Jurgen Westerhof 2022
// https://turtletoy.net/turtle/7269af8a23
// Abusing the opacity, usage:
//      Canvas.setpenopacity(1/baleSize);
//      const bales = Array.apply(null,{length: baleSize}).map(b => new Bale(baleSize--);
// Then use bales[x] wherever you would use a turtle object to 'draw'
// in 'color' x (i.e Polygon hatching with a bale object and .15 interspacing)
////////////////////////////////////////////////////////////////
function Bale(n) {class Bale {constructor(n) { this.turtles = Array.apply(null,{length: n}).map(i => new Slowbro()); }back(e){ this.turtles.map(t => t.back(e)); return this; }backward(e){ this.turtles.map(t => t.backward(e)); return this; }bk(e){ this.turtles.map(t => t.bk(e)); return this; }fd(e){ this.turtles.map(t => t.fd(e)); return this; }forward(e){ this.turtles.map(t => t.forward(e)); return this; }left(e){ this.turtles.map(t => t.left(e)); return this; }lt(e){ this.turtles.map(t => t.lt(e)); return this; }right(e){ this.turtles.map(t => t.right(e)); return this; }rt(e){ this.turtles.map(t => t.rt(e)); return this; }seth(e){ this.turtles.map(t => t.seth(e)); return this; }setheading(e){ this.turtles.map(t => t.setheading(e)); return this; }setx(e){ this.turtles.map(t => t.setx(e)); return this; }sety(e){ this.turtles.map(t => t.sety(e)); return this; }setpos(x, y){ this.turtles.map(t => t.setpos(x, y)); return this; }setposition(x, y){ this.turtles.map(t => t.setposition(x, y)); return this; }toradians(e){ this.turtles.map(t => t.toradians(e)); return this; }degrees(e){ this.turtles.map(t => t.degrees(e)); return this; }goto(x, y){ this.turtles.map(t => t.goto(x, y)); return this; }jmp(x, y){ this.turtles.map(t => t.jmp(x, y)); return this; }jump(x, y){ this.turtles.map(t => t.jump(x, y)); return this; }circle(radius, extent, steps) { this.turtles.map(t => t.circle(radius, extent, steps)); return this; }clone(){ let b = new Bale(this.turtle.length); this.turtles.map((t, k) => b.turtles[k] = t.clone()); return b; }h(){ return this.turtles[0].h(); }heading(){ return this.turtles[0].heading(); }home(){ this.turtles.map(t => t.home()); return this; }isdown(){ return this.turtles[0].isdown(); }pos(){ return this.turtles[0].pos(); }position(){ return this.turtles[0].position(); }pd(){ this.turtles.map(t => t.pd()); return this; }pendown(){ this.turtles.map(t => t.pendown()); return this; }penup(){ this.turtles.map(t => t.penup()); return this; }pu(){ this.turtles.map(t => t.pu()); return this; }down(){ this.turtles.map(t => t.down()); return this; }up(){ this.turtles.map(t => t.up()); return this; }radians(){ this.turtles.map(t => t.radians()); return this; }x(){ return this.turtles[0].x(); }xcor(){ return this.turtles[0].xcor(); }y(){ return this.turtles[0].y(); }ycor(){ return this.turtles[0].ycor(); }set(k,v){this.turtles.map(t => t[k] = v);}}return new Bale(n);} Canvas.setpenopacity(-.01);const turtle = new Turtle();const textWriter = new Bale(100);const text = new Text();const polygons = new Polygons();const rot2 = (a) => [Math.cos(a), -Math.sin(a), Math.sin(a), Math.cos(a)];const trans2 = (m, a) => [m[0]*a[0]+m[2]*a[1], m[1]*a[0]+m[3]*a[1]];const scale2 = (a,b) => [a[0]*b,a[1]*b];const add2 = (a,b) => [a[0]+b[0],a[1]+b[1]];let p = polygons.create();let pts = [];for(let i = -10; i < 30; i++) {pts.push([Math.cos(Math.PI*2*i/40) * 4, Math.sin(Math.PI*2*i/40) * 4]);}p.addPoints(...pts.filter((i,k) => k <= 10).map(i => add2(i, [46, -23])),...pts.filter((i,k) => 10<=k && k<=20).map(i => add2(i, [46, 23])),...pts.filter((i,k) => 20<=k && k<=30).map(i => add2(i, [-46, 23])),...pts.filter((i,k) => 30<=k && k<=40).map(i => add2(i, [-46, -23])));p.addHatching(1,.15);polygons.draw(new Bale(17), p);textWriter.set('thickness', 5);textWriter.jump(-42, -9);text.print(textWriter, 'Error 404',.55);textWriter.set('thickness', 2);textWriter.jump(-38.5, 12);text.print(textWriter, 'Turtle not found',.3);const t = 1/5;p = polygons.create();p.addPoints(...[[-1, -t], [-t, -t], [-t,-1], [t, -1], [t, -t], [1, -t], [1, t], [t, t], [t, 1], [-t, 1], [-t, t], [-1, t]].map(i => trans2(rot2(Math.PI/4), scale2(i, 90))));p.addHatching(1,.15);polygons.draw(new Bale(10), p);p = polygons.create();p.addPoints([-101, -101], [101, -101], [101, 101], [-101, 101]);p.addHatching(1,.17);polygons.draw(new Bale(15), p);