import turtle


def drawstart():
    turtle.setheading(180)
    turtle.forward(400)
    turtle.setheading(0)
    turtle.setheading(90)
    turtle.forward(400)
    turtle.setheading(-90)
    turtle.forward(400)
    turtle.setheading(0)

mode = input("modes: for 'y = m*x + b' type 1    :    ")

if mode == "1":
    m = input("m (in numbers please) ")
    b = input("b (in numbers please) ")

    turtle = turtle.Turtle()
    turtle.color('red')

    drawstart()

    for i in range(0, 200):
        turtle.sety(int(m)*int(i)+int(b))
        turtle.setx(int(i))



#    turtle.forward(int(b + b ))
#    turtle.setheading(45 / int(m))
#    turtle.forward(500)