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

### Instruction:
Corveus sleeps 4 hours a day and his doctor recommended for him to sleep 6 hours a day. How many hours of sleep does Corveus lack in a week?

### Response:
 Corveus anakosa masaa 6 - 4 = <<6-4=2>>2 ya kulala kila siku.
Hivyo, jumla ya masaa anayokosa kulala kwa wiki ni 2 x 7 = <<2*7=14>>14.