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

### Instruction:
Cecil has $600. Catherine has $250 less than twice as much as Cecil while Carmela has $50 more than twice Cecil's money. How much money do they have altogether?

### Response:
 Mara mbili ya pesa za Cecil ni $600 x 2 = $<<600*2=1200>>1200.
Hivyo, Catherine ana $1200 - $250 = $950.
Wakati Carmela ana $1200 + $50 = $<<1200+50=1250>>1250.
Hivyo, wana jumla ya $600 + $950 + $1250 = $<<600+950+1250=2800>>2800.