def mask_table_l() -> dict[int, str]:
    """Table of mask codes and correction level for correction level L.

    Returns:
        dict[int, str]: Dictionary of the form {mask number: mask and
        correction Level Code}
    """
    table = {
        0: "111011111000100",
        1: "111001011110011",
        2: "111110110101010",
        3: "111100010011101",
        4: "110011000101111",
        5: "110001100011000",
        6: "110110001000001",
        7: "110100101110110"
    }

    return table