Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
John is a hack author.  He writes a book every 2 months.  He has been writing for 20 years and has earned an average of $30,000 per book.  How much money has he made writing?

### Response:
 John anaandika kitabu kila baada ya miezi 2, hivyo anaandika jumla ya 20*2=<<20*2=40>>40 kitabu.
Kila kitabu kinamletea $30,000, hivyo anapata 40*30,000=<<40*30000=1,200,000>>1,200,000 dola.