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

### Instruction:
Two old ladies spent the afternoon walking through Central Park.  The first lady walked twice as far as the second lady.  If the second lady walked four miles, what is the combined total distance, in miles, the two ladies walked?

### Response:
 Mzee wa kwanza alitembea 2*4=<<2*4=8>>8 maili.
Jumla, wazee hao wawili walitembea 8+4=<<8+4=12>>12 maili.