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

### Instruction:
Dalton, Hunter, and Alex started a Superhero Fan Club. They set a goal to watch as many Superhero movies as they could in one summer. Dalton watched 7 movies, Hunter watched 12, and Alex watched 15. They all watched 2 movies together, but every other movie they watched was different. How many different movies did they see?

### Response:
 Dalton aliangalia sinema 7 - 2 = <<7-2=5>>5 zaidi.
Hunter aliangalia sinema 12 - 2 = <<12-2=10>>10 zaidi.
Alex aliangalia sinema 15 - 2 = <<15-2=13>>13 zaidi.
Marafiki watatu walitazama sinema 5 + 10 + 13 = <<5+10+13=28>>28 zaidi.
Walitazama jumla ya sinema 2 + 28 = <<2+28=30>>30.