# coding:utf-8

import time


def consumer():
 r = ''
 while True:
 n = yield r
 print('[CONSUMER] input %s' % n)
 if not n:
 return
 print('[CONSUMER] Consuming %s...' % n)
 time.sleep(1)
 r = '200 OK'


def produce(c):
 c.next()
 n = 0
 while n < 5:
 n = n + 1
 print('[PRODUCER] Producing %s...' % n)
 r = c.send(n)
 print('[PRODUCER] Consumer return: %s' % r)
 c.close()


if __name__ == '__main__':
 c = consumer()
 produce(c)