def make_numeric_list(input_str: str, input_str_len: int) -> list:
	"""
	This converts an uppercase string of letters into a list of it's numeric
	values for use in the Hill cipher. All values are converted into their
	index of the standard english alphabet.

	:param input_str: The string to be listified.
	:param input_str_len: The length of that string.
	:return: a list of integers.
	"""

	numeric=list( ord(input_str[i]) - 65 for i in range(input_str_len))

	return numeric