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

### Instruction:
In Henry's collection of music CDs, he has 3 more country CDs than rock CDs but twice as many rock CDs as classical CDs. If he has 23 country CDs, how many classical CDs make up his collection?

### Response:
 Henry ana CD 23-3=<<23-3=20>>20 za muziki wa rock.
Henry ana CD 20/2=<<20/2=10>>10 za muziki wa classical.