This is lab 4

def print_beam():

print ‘+ – – – – + – – – – +’

def print_post():
print ‘| | |’

def print_f():
print_post()
print_post()

def print_s():
print_beam()
print_f()
print_f()
print_beam()
print_f()
print_f()
print_s()
print_beam()