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

### Instruction:
Anna has 50 pencils and Harry has twice the number of Anna’s Pencils but he lost 19 of them. How many pencils are left with Harry?

### Response:
 จำนวนดินสอของแฮร์รี่คือ 50 * 2 = <<50*2=100>>100 ดินสอ
จำนวนดินสอที่เหลือคือ 100 – 19 = <<100-19=81>>81 ดินสอ