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

### Instruction:
Tyler has 21 CDs. He gives away a third of his CDs to his friend. Then he goes to the music store and buys 8 brand new CDs. How many CDs does Tyler have now?

### Response:
Tyler gives away 21 / 3 = <<21/3=7>>7 CDs
After giving away a third of his CDs, Tyler has 21 - 7 = <<21-7=14>>14 CDs
After buying new CDs, Tyler has 14 + 8 = <<14+8=22>>22 CDs
#### 22