//10
//10*1.4
//10*1.4*1.4
//10*1.4*1.4*1.4
//10*1.4*1.4*1.4*1.4
//10*1.4*1.4*1.4*1.4*1.4
clear()
setSpeed(superFast)
setBackground(blue)
setPenColor(magenta)
setPenThickness(10)
forward(20)
setPenThickness(14)
forward(20)
setPenThickness(19.5)
forward(20)
setPenThickness(27.4)
forward(20)
setPenThickness(38.4)
forward(20)
setPenThickness(53.7)
forward(20)
invisible()