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

### Instruction:
Jimmy decides to make sandwiches for a picnic.  He makes 8 sandwiches in total, using two slices of bread each.  How many packs of bread does he need to buy to make these sandwiches, assuming he starts with no bread and each pack has 4 slices of bread in it?

### Response:
 เขาต้องการ 8 * 2 = <<8*2=16>>16 แผ่นขนมปัง
นั่นหมายความว่าเขาต้องการ 16 / 4 = <<16/4=4>>4 แพ็คขนมปัง