clear()
setSpeed(fast)
setBackgroundH(yellow, green)
setPenThickness(5)
def square
{
forward(150)
right()
forward(150)
right()
forward(150)
right()
forward(150)
right()
}
def squarePattern
{
square
right(45)
square
right(45)
square
right(45)
square
right(45)
square
right(45)
square
right(45)
square
right(45)
square
right(45)
}
squarePattern