# ...............
#  A Python Quiz
# ...............
# ....................................................
# The Task:
# Find the answer to life, the universe and everything
# ....................................................
# define a variable 'first' as the remainder of 49:5
first = 49 % 5
print(first)
# define an empty list with the name 'first_list'
first_list = []
# fill 'first_list' with all numbers from 1 to 100 in steps of 5
for i in range(1, 100, 5):
        first_list.append(+ i)
print(first_list)
# define a variable 'second' as the number of elements in 'first_list'
second = len(first_list)
print('this is second', second)
# define 'second_list' where every element is twice the corresponding element in 'first_list',
# but only for elements in 'first_list' that are smaller than 50
second_list = [2 * x for x in first_list if x < 50]
print(second_list)
# define a variable 'third' as the maximum in 'second_list'
third = max(second_list)
print(third)
# as long as an iterator starting at 'first' is smaller than 'third'
# increase a new variable 'fourth' starting at 'third'
#fourth = 0
while first < third:
    fourth = third + 1
    first = first + 1
print('this is fourth', fourth)
print('this is first', first)


# define a function 'diff' that subtracts b from a and returns the result


def diff(a, b):
    """calculate (a - b) * 2"""
    return (a-b)*2


# define a variable 'fifth' that stores the result of a call of diff with a = 'fourth' and b = 'first'
fifth = diff(fourth, first)
print('this is fifth', fifth)

# finally, define a variable 'answer' as two times 'second' + fifth
answer = 2 * second + fifth

# create an output that says: The answer to life, the universe and everything is 'answer'.
print('')
print('-------------------------------------------------------')
print('The answer to life, the universe and everything is', answer, '.')
print('-------------------------------------------------------')