def add(a, b):
  return a + b
print(add(2, 3))

x = 10
y = 20
if x < y:
  print('x is less than y')
else:
  print('x is not less than y')

list1 = [1, 2, 3, 4, 5]
list2 = [i * i for i in list1]
print(list2)

import threading

def print_numbers():
  for i in range(10):
    print(i)

def print_letters():
  for letter in 'abcdefghij':
    print(letter)

thread1 = threading.Thread(target=print_numbers)
thread2 = threading.Thread(target=print_letters)

thread1.start()
thread2.start()

class Person:
  def __init__(self, name, age):
    self.name = name
    self.age = age

p1 = Person('John', 36)
print(p1.name)
print(p1.age)

def outer_function(x):
  def inner_function(y):
    return x + y
  return inner_function

add_five = outer_function(5)
print(add_five(10))