Code Sketch

clear()
setPenColor(green)
setPenThickness(5)

repeat(360){
forward(1.5)
right(1)
}
right(180)
repeat(360){
forward(1.5)
right(1)
}
left(90)
repeat(360){
forward(1.5)
right(1)
}
left(180)
repeat(360){
forward(1.5)
right(1)
}