from turtle import *
m=30
left(90)
screensize(2000,2000)
tracer(0)
pendown()

for _ in range(2):
    forward(10*m)
    right(90)
    forward(18*m)
    right(90)
penup()
forward(5*m)
right(90)
fofward(14*m)
left(90)
pendown()
for _ in range(2):
    forward(17*m)
    right(90)
    fotward(7*m)
    right(90)
for x in range (-50,50):
    for y in range (-50,50):
        goto(x*m,y*m)
        dot(3)
done()