import stackless
import random

numbers = range(20)
random.shuffle(numbers)
print numbers
print 'Sorting...'

def counter(n, ch):
    for i in xrange(n):
        stackless.schedule()
    ch.send(n)

ch = stackless.channel()
for each in numbers:
    stackless.tasklet(counter)(each, ch)

stackless.run()

rlist = []
while ch.balance:
    rlist.append(ch.receive())

print rlist