Four traditional workstations

It can be completed in 36 days if conditions permit.

Four products (1 # 2 # 3 # 4 #) are processed in four processing stations: A, B, C and D respectively. On the first day of production, station A couldn't finish, station C was just right, and there was no work at station B and D. The next day, there was no work in Station A, and the work could not be finished. Station C and Station D were just right. On the third day, station A couldn't finish reading it, but station C and station D were just right. If conditions permit, on the first day, A/B/D station will process 1# products, and C station will process 2# products. The next day, Station A and Mile Mile will make 1# products, and Station 3#D will make 2# products. On the third day, Station A makes 1# products with bilibili, Station C and Station D. If the conditions are met and your order number is 36, then your production cycle is only 36 days. Maybe returning to incorrect hopes will help you.