def get_uncovered_character(number_of_mines : int) -> str:
    """Gets the correct character for a number tile.

    Args:
        number_of_mines (int): The number of mines surrounding the tile.

    Returns:
        str: The character representation of the tile.
    """
    if number_of_mines == 0:
        return "."
    return str(number_of_mines)