queue = []

def make_producer():
    while True:
        print("I don't want these any more")
        for i in range(3):
            print(f"I'll drop this {i} on the ground")
            queue.append(i)
        print("Now I will run away")
        yield consumer

def make_consumer():
    while True:
        print("I hunger")
        while queue:
            x = queue.pop()
            print(f"Mm, tasty {x}")
        print("Nap time")
        yield producer

producer = make_producer()
consumer = make_consumer()

g = producer
count = 0
while True:
    g = next(g)
    count += 1
    if count > 20: break