from turtle import *
home()
seth(90)
rt(180)
fd(50)
rt(90)
fd(500)
rt(90)
fd(50)
for i in range(5):
    circle(-50, 180)
    seth(90)
for x in range(0,-14,-1):
    for y in range(-5,8):
        goto(x*10 , y*10 ) 
        dot(5)
mainloop