print(2 ^ 3 ^ 3 ^ 2 ^ 2 ^ 4 ^ 2 ^ 4 ^ 2)

a = 0
def func():
    global a
    for num in [2, 4, 8]:
        a += 1
        yield(num * 0.5)
        
array = []
for val in func():
    array.append(int(a == val))
print(sum(array))

def f(n):
    def g(x):
        return x ** n
    return g

g = f(3)
print(g(2), g(3))

a = 1; b = 2
print(eval('print(a + b, end=" ") or 0'))

class A:
    x = 1
    def __init__(self):
        self.y = 2

a = A()

class A:
    def __iter__(self):
        yield from range(10)
a = A()
print(5 in a, 20 in a)

def g(f1, f2, x):
    return f1(x) + f2(x) if x else 0
f1, f2 = lambda x: x**3/abs(x), lambda x: x % 2
x = 121
g(f1, f2, -x) + g(f1, f2, x)

import re
sent = 'Hello, Ben! How are you doing?'
lister = filter(None, re.split("[,!?]+", sent))
print(len(list(lister)))

from itertools import product
a = [1, 2]
b = [3, 4]
sum(sum(product(a, b), (0, 0)))