clear()
setBackground(red)
setPenColor(blue)
setFillColor(yellow)
setPenThickness(6)
circle(50)
right()
circle(50)
right()
circle(50)
right()
circle(50)
left()
circle(100)
left()
circle(100)
left()
circle(100)
left()
circle(100)
right()
circle(150)
right()
circle(150)
right()
circle(150)
right()
circle(150)