cubes = [1, 8, 27]
cubes.append(4 ** 3)
print(cubes)

• [64,1, 8, 27]

• [1, 8, 27, 12]

• [1, 8, 27, 64]

• [12 ,1, 8, 27]

word = "galaxy"
print(word[4:50])

• axyaxy

• axy

• xy

• xyxy

x = 51 % 3
print(x)

• 17

• 0

def if_confusion(x, y):
    if x > y:
        if x - 5 > 0:
            x = y
            return "A" if y == y + y else "B"
        elif x + y > 0:
            while x > y: x -= 1
            while y > x: y -= 1
            if x == y:
                return "E"
    else:
        if x - 2 > y - 4:
            x_old = x
            x = y * y
            y = 2 * x_old
            if (x - 4) ** 2 > (y - 7) ** 2:
                return "C"
            return "D"
        return "H"
print(if_confusion(3, 7))

• C

• D

• E

• H

x = 'cool'
print(x[-1] + x[-2]
        + x[-4] + x[-3])

• cool

• colo

• loco

• looc

words = ['cat', 'mouse']
for word in words:
    print(len(word))

• 1

  3

• 2

  4

• 3

  5

• 4

  4

word = "galaxy"
print(word[:-2] + word[-2:])

• yxalag

• yxa

• gal

• galaxy

def ping(i):
    if i > 0:
        return pong(i - 1)
    return "0"
def pong(i):
    if i > 0:
        return ping(i - 1)
    return "1"
print(ping(29))

• 0

• 1

customers = ['Marie', 'Anne', 'Donald']
customers[2:4] = ['Barack', 'Olivia', 'Sophia']
print(customers)

• ['Marie', 'Anne', 'Barack']

• ['Barack', 'Olivia', 'Sophia']

• ['Marie', 'Anne', 'Barack', 'Olivia', 'Sophia']

• ['Marie', 'Anne', 'Donald']

letters = ['a', 'b', 'c',
           'd', 'e', 'f', 'g']
letters[1:] = []
print(letters)

• ['a','b']

• ['a','b','c']

• ['a']

• ['b','c','d']