Create an equation for calculating the total distance walked.
D = d * n 

Where:
D = total distance walked,
d = distance in one walk,
n = number of walks taken.
Complete the following task based on the instruction and optional input provided.### Instruction:
Create an equation for calculating the total distance walked.

### Output:
D = d * n 

Where:
D = total distance walked,
d = distance in one walk,
n = number of walks taken.