from time import sleep, ctime
def loop0():
print 'start loop 0 at:', ctime()
sleep(4)
print 'loop 0 done at:', ctime()
def loop1():
print 'start loop 1 at:', ctime()
sleep(2)
print 'loop 1 done at:', ctime()
print 'starting at:', ctime()
loop0()
loop1()
print 'all DONE at:', ctime()