import turtle as t
k=15
for i in range(2):
  t.forward(10*k)
  t.right(90)
  t.forward(20*k)
  t.right(90)
t.up()
t.forward(4*k)
t.right(90)
t.forward(3*k)
t.left(90)
t.down()
for d in range(2):
  t.forward(70*k)
  t.right(90)
  t.forward(80*k)
  t.left(90)
t.up()
for x in range(-10,10):
  for y in range(-10,10):
    t.goto(x*k,y*k)
    t.dot(5)