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

### Instruction:
 Jeff ana GB 16 ya uhifadhi kwenye simu yake. Tayari anatumia GB 4. Ikiwa wimbo unachukua takriban MB 30 ya uhifadhi, Jeff anaweza kuhifadhi wimbo wangapi kwenye simu yake? (Kuna MB 1000 katika GB).


### Response:
 Jeff ana GB 16-4 = <<16-4=12>>12 zilizobaki kwenye simu yake.
Hii ni 12*1000= <<12*1000=12000>>12,000MB.
Kwa hivyo, Jeff anaweza kuhifadhi 12,000/30=<<12000/30=400>>400 wimbo kwenye simu yake.