def average(num1, num2, num3):
    '''Takes the average of three numbers.'''
    total = num1 + num2 + num3  # total up the three numbers
    return total / 3        # return their average

def average_top_three_v1(num1, num2, num3, num4):
    '''Give the average of the top 3 out of 4 numbers.'''
    total = num1 + num2 + num3 + num4
    min_val = min(num1, num2, num3, num4)
    return (total - min_val) / 3

def average_top_three_v2(num1, num2, num2, num3):
    '''Give the average of the top 3 out of 4 numbers.'''
    avg1 = average(num1, num2, num3)
    avg2 = average(num2, num3, num4)
    avg3 = average(num1, num3, num4)
    avg4 = average(num1, num2, num4)
    return max(avg1, avg2, avg3, avg4)

def calc_age():
    """Ask the user for their age in years, then print their age in days."""
    age_years = input("Enter your age in years: ")
    age_days = int(age_years) * 365 # convert string to int
    print("You are " + str(age_days) + " days old!")