def add(a=0, b=0, *args):
    total = a + b
    for num in args:
        total += num
    return total

"""
    Adds two or more numbers together.

    Parameters:
        a (int or float, optional): The first number to add. Defaults to 0.
        b (int or float, optional): The second number to add. Defaults to 0.
        *args (int or float): Additional numbers to add.

    Returns:
        int or float: The sum of all provided numbers.
    """

print(add(1, 2))  # Output: 3
print(add(1, 2, 3, 4))  # Output: 10
print(add(1))  # Output: 1
print(add(1, 2, 3, 4, 5, 6))  # Output: 21
print(add())  # Output: 0

# Function to calculate the average mark of a student
# It takes the student's name and a variable number of marks as arguments.
def average_mark(name, *args):
    mark = round(sum(args)/len(args), 2) # average value rounded to the 2 num after the dot
    print(f"{name} got {mark}")

average_mark("Tom", 4.0, 3.5, 3.0, 3.3, 3.8)
average_mark("Dick", 2.5, 3.8)
average_mark("Harry", 4.0, 4.5, 3.8, 4.2, 4.0, 3.9)