<human>:  variable for format length.
<bot>: Here is a Python function to variable for format length

import math

def format_length(length: int, width: int) -> str:
  """
  Returns a string of length width with the given length

  Ex: format_length(10, 10) -> '10'
  """
  return str(length).zfill(width)

# Enter the length and width
length = 10
width = 10

# Calling the function
print((format_length(length, width)))

#Example Output
# 0000000010

#Remember to inspect code for bugs.