from functools import reduce
numbers = [1, 2, 3]
reduce(lambda x, y: x + y, numbers)

x=1
def cg():
  global x
  x=x+1  
cg()
x

def foo(k):
    k = [1]
q = [0]
foo(q)
print(q)

print("abc DEF".capitalize())

class A:
    @staticmethod
    def a(x):
        print(x)
A.a(100)

def foo(k):
    k = [1]

q = [0]
foo(q)
print(q)

a = [0, 1, 2, 3]
for a[0] in a:
    print(a[0])

class Demo:
    def __init__(self):
        self.a = 1
        self.__b = 1
 
    def display(self):
        return self.__b
 
obj = Demo()
print(obj.__b)