What type of input does the following command line expect?
calculate 5+7
This command line expects two numerical inputs (5, 7) and an arithmetic operation (+) as inputs. It will then calculate the resulting sum.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What type of input does the following command line expect?

### Response:
This command line expects two numerical inputs (5, 7) and an arithmetic operation (+) as inputs. It will then calculate the resulting sum.