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

### Instruction:
Alex has 4 new shirts. Joe has 3 more new shirts than Alex. If Ben has eight more new shirts than Joe, how many new shirts does Ben have?

### Response:
 โจมีเสื้อใหม่ 4 + 3 = <<4+3=7>>7 เสื้อ
เบนมีเสื้อใหม่ 8 + 7 = <<8+7=15>>15 เสื้อ