def METHOD_NAME(lfn_full_name: str) -> int:
    """
    Compute the number of entries required to store the long name.
    One long filename entry can hold 13 characters with size 2 bytes.
    E.g. "thisisverylongfilenama.txt" with length of 26 needs 2 lfn entries,
    but "thisisverylongfilenamax.txt" with 27 characters needs 3 lfn entries.
    """
    entries_count: int = (len(lfn_full_name) + Entry.CHARS_PER_ENTRY - 1) // Entry.CHARS_PER_ENTRY
    return entries_count