''' 1)Fill in the blanks of this code to print out the numbers 1 through 7. '''

'''number = 1

while number <= 7:

print(number, end=" ")

number+=1 '''

''' 2) The show_letters function should print out each letter of a word on a

separate line. Fill in the blanks to make that happen. '''

'''def show_letters(word):

for i in word:

print(i)

show_letters("Hello")

# Should print one line per letter '''

''' 3) Complete the function digits(n) that returns how many digits the

number has. For example: 25 has 2 digits and 144 has 3 digits.

Tip: you can figure out the digits of a number by dividing it by

10 once per digit until there are no digits left. '''

'''def digits(n):

count = 0

if n == 0:

return 1

while (n > 0):

count += 1

n = n // 10

return count

print(digits(25)) # Should print 2

print(digits(144)) # Should print 3

print(digits(1000)) # Should print 4

print(digits(0)) # Should print 1 '''

''' 4) This function prints out a multiplication table (where each number is the

result of multiplying the first number of its row by the number at the top

of its column). Fill in the blanks so that calling multiplication_table(1, 3)

will print out:

1 2 3

2 4 6

3 6 9 '''

''' def multiplication_table(start, stop):

for x in range(start,stop+1):

for y in range(start,stop+1):

print(str(x*y), end=" ")

print()

multiplication_table(1, 3)

# Should print the multiplication table shown above '''

'''5) The counter function counts down from start to stop when start is bigger

than stop, and counts up from start to stop otherwise. Fill in the blanks

to make this work correctly. '''

'''def counter(start, stop):

x = start

if x > stop:

return_string = "Counting down: "

while x >= stop:

return_string += str(x)

if x > stop:

return_string += ","

x -= 1

else:

return_string = "Counting up: "

while x <= stop:

return_string += str(x)

if x < stop:

return_string += ","

x += 1

return return_string

print(counter(1, 10)) # Should be "Counting up: 1,2,3,4,5,6,7,8,9,10"

print(counter(2, 1)) # Should be "Counting down: 2,1"

print(counter(5, 5)) # Should be "Counting up: 5" '''

''' 6) The even_numbers function returns a space-separated string of all positive

numbers that are divisible by 2, up to and including the maximum that's

passed into the function. For example, even_numbers(6) returns “2 4 6”.

Fill in the blank to make this work. '''

'''def even_numbers(maximum):

return_string = ""

for x in range(1,maximum + 1):

if x & 1 == 0:

return_string += str(x) + " "

return return_string.strip()

print(even_numbers(6)) # Should be 2 4 6

print(even_numbers(10)) # Should be 2 4 6 8 10

print(even_numbers(1)) # No numbers displayed

print(even_numbers(3)) # Should be 2

print(even_numbers(0)) # No numbers displayed '''