from os import system

lab_spot = "labs"
system("mkdir " + lab_spot)
system("wget http://isoptera.lcsc.edu/~seth/cs111")
index_lines = open("cs111").readlines()
system("rm cs111")

for line in index_lines:
    if "a href" in line and "Lab " in line:
        lab_filename = line.split('"')[1]
        system("wget http://isoptera.lcsc.edu/~seth/cs111/" + lab_filename)
        system("mv " + lab_filename + " " + lab_spot)