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f=0;draw=_=>{f||createCanvas(999,w=600)+noStroke()+background(0);translate(500,w);rotate(-1.5);r=99;while(r--){t=13;u=(f*6)%600;fill(0,w,u/3);push();while(t--){rotate((random()<.5?1:-1)*PI/10);if(u<40)break;u-=40;translate(40,0)}rect(u-4,-1,8,2);pop()}f++}