from turtle import *
tracer(0)
r = 5
rt(45)
for i in range(7):
    fd(5 * r)
    rt(45)
    fd(10 * r)
    rt(135)
up()
for x in range(-100, 5):
    for y in range(-100, 5):
        goto(x * r, y * r)
        dot(3, 'blue')
goto(0, 0)
update()
exitonclick()