Functions

def greet():
    print("Hello, how are you?")

greet()  # Output: "Hello, how are you?"

def greet(name):
    print("Hello, " + name + "! How are you?")

greet("John")  # Output: "Hello, John! How are you?"

def add_numbers(a, b):
    return a + b

result = add_numbers(5, 3)
print(result)  # Output: 8