import turtle
turtle.shape("arrow")
turtle.color("green")
turtle.setup(800,600)
turtle.title('bandeira')
turtle.pensize(3)
# primeiro
turtle.fillcolor("black")
turtle.begin_fill()
turtle.up()
turtle.goto(0,300)
turtle.down() 
turtle.goto(00,0)
turtle.goto(300,0)
turtle.goto(300,300)                     
turtle.goto(0,300)
turtle.end_fill()

#segundo
turtle.fillcolor("black")
turtle.begin_fill()
turtle.up()
turtle.goto(150,450)
turtle.down()
turtle.goto(150,150)
turtle.goto(450,150)
turtle.goto(450,450)
turtle.goto(150,450)
turtle.end_fill()

#linhas

turtle.up()
turtle.goto(0,300)
turtle.down()
turtle.goto(150,450)
turtle.goto(0,300)

turtle.up()
turtle.goto(0,0)
turtle.down()
turtle.goto(150,150)
turtle.goto(0,0)

turtle.up()
turtle.goto(300,0)
turtle.down()
turtle.goto(450,150)
turtle.goto(300,0)

turtle.done()