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

### Instruction:
John builds a box.  The box is 26 inches by 26 inches by 14 inches.  The walls are 1 inch thick on each side.  How much is the internal volume in cubic feet?

### Response:
 Kuta zinapunguza inchi 2 kutoka kila upana. Hivyo upana mrefu ni inchi 26-2 = <<26-2=24>>24. Hiyo ni futi 24/12 = <<24/12=2>>2. Upana mdogo ni inchi 14-2 = <<14-2=12>>12. Hiyo ni futi 12/12 = <<12/12=1>>1. Hivyo ujazo wa ndani ni 2*2*1 = <<2*2*1=4>>4 futi za ujazo.