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

### Instruction:
Ed and Jacob already had 2 shells in their shell collection. Then they went to the beach to collect even more. Ed found 7 limpet shells, 2 oyster shells, and 4 conch shells. Jacob found 2 more shells than Ed did. How many shells do the pair have altogether?

### Response:
 Ed alipata maganda 7 + maganda 2 + maganda 4 = <<7+2+4=13>>13 maganda pwani.
Jacob alipata maganda 13 + maganda 2 = <<13+2=15>>15 maganda pwani.
Jumla ya maganda ya Ed na Jacob ni maganda 2 + maganda 13 + maganda 15 = <<2+13+15=30>>30.