Child PID=0. Producer: Current N=12. Producer: Current N=14. Producer: Current N=16. Producer: Current N=18. Producer: Current N=20. Producer: Current N=22. Overflow! Parent PID=24625. Consumer: Current N=9. Consumer: Current N=8. Consumer: Current N=7. Consumer: Current N=6. Consumer: Current N=5. Consumer: Current N=4. Consumer: Current N=3. Consumer: Current N=2. Consumer: Current N=1. Consumer: Current N=0. Underflow!