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

### Instruction:
Tamtam collected 65 shells in total. She got 13 purple shells, 8 pink shells, 18 yellow shells, and 12 blue shells. The remaining shells are color orange. How many orange shells are there?

### Response:
 Tamtam ana jumla ya magamba 13 + 8 + 18 + 12 = <<13+8+18+12=51>>51 ambayo sio ya rangi ya chungwa.
Hivyo, Tamtam ana jumla ya magamba 65 - 51 = <<65-51=14>>14 ya rangi ya chungwa.