# typeface.py
# By Chris Proctor and _________

# Contains one function for each letter in the English alphabet. 
# Each function should draw its letter at a scale of `unit`, and then 
# return back to the same position and heading where it started. 

# Note: The `sqrt` function from math may be helpful--if you want to 
# move the turtle along the diagonal of a square with side length x, 
# the turtle should move a distance of sqrt(x)

from turtle import *
from math import sqrt

unit = 10  

def draw_letter_l():
    pendown()
    left(90)
    forward(unit * 4)
    penup()
    right(90)

def draw_letter_o():
    pendown()
    for i in range(4):
        forward(unit * 4)
        left(90)
    penup()

def draw_letter_z():
    pendown()
    forward(unit * 6)
    left(135)
    forward(unit * sqrt(2) * 6)
    right(135)
    forward(unit * 6)
    penup()
#  spacing 
draw_letter_l()
penup()
forward(unit * 8)

draw_letter_o()
penup()
forward(unit * 8)

draw_letter_z()

done()