from typing import List


def get_input(input_filename: str) -> List[int]:
    """Reads and parses the input file into a list of integers
    >>> get_input("input/06-small.txt")
    [3, 4, 3, 1, 2]
    >>> l = get_input("input/06.txt")
    >>> sum(l)
    769
    >>> len(l)
    300
    """
    with open(input_filename) as f:
        return [int(x) for x in f.read().split(",")]