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

### Instruction:
 Nathan alikwenda kwenye arcade. Alicheza mchezo wa air hockey mara 2 na mchezo wa kikapu mara 4. Ikiwa kila mchezo unagharimu alama 3, alitumia alama ngapi?


### Response:
 Nathan alicheza jumla ya michezo 2 air hockey + 4 kikapu = <<2+4=6>>6.
Hii ilimgharimu michezo 6 x alama 3 kila mmoja = <<6*3=18>>18 alama.