Помогите по информатике

import turtle

создание экрана
screen = turtle.Screen()
screen.setup(width=600, height=600)
screen.bgcolor("white")

создание черепахи-человека
man = turtle.Turtle()
man.speed(0)
man.penup()
man.goto(0, 0)
man.pendown()

настройка черепахи-человека
man.pencolor("black")
man.pensize(5)

рисование тела
man.forward(100)
man.backward(50)
man.left(90)
man.forward(100)
man.backward(80)
man.right(90)
man.forward(50)
man.right(90)
man.forward(30)
man.backward(30)
man.left(90)
man.forward(30)
man.penup()
man.goto(0, 0)

рисование головы
man.pendown()
man.circle (25)

рисование рук
man.penup()
man.goto(50, 0)
man.pendown()
man.left(135)
man.forward(50)
man.backward(50)

man.penup()
man.goto(-50, 0)
man.pendown()
man.right(135)
man.forward(50)
man.backward(50)

рисование ног
man.penup()
man.goto(0, -100)
man.pendown()
man.left(45)
man.forward(50)
man.backward(50)

man.penup()
man.goto(0, -100)
man.pendown()
man.right(45)
man.forward(50)
man.backward(50)

turtle.done()