Write a simple Python script:

1. Use `print` to output "Hello, World!".
2. Add a single-line comment that explains the code.

# This prints a greeting
print("Hello, World!")

Define the following variables:

1. A variable `x` with the value 5.
2. A variable `y` with the value "John".
3. Print the value of each variable.

x = 5
y = "John"
print(x)
print(y)

Identify data types:

1. Define `x = 5`.
2. Define `y = 2.8`.
3. Define `z = "Hello"`.
4. Use `type()` to print the type of each variable.

x = 5
y = 2.8
z = "Hello"

print(type(x)) # <class 'int'>
print(type(y)) # <class 'float'>
print(type(z)) # <class 'str'>

Convert between data types:

1. Convert `2.8` to an integer.
2. Convert `3` to a float.
3. Convert `5` to a string.

x = int(2.8)   # 2
y = float(3)   # 3.0
z = str(5)     # "5"

Manipulate strings:

1. You have `txt = " Hello World "`.
2. Remove leading/trailing spaces with `strip`.
3. Convert the text to uppercase with `upper`.
4. Replace "H" with "J" using `replace`.

txt = " Hello World "

print(txt.strip())        # "Hello World"
print(txt.upper())        # " HELLO WORLD "
print(txt.replace("H", "J")) # " Jello World "

Perform the following operations:

1. Print the result of `10 + 5`.
2. Print the result of `10 / 2`.
3. Print the result of `2` raised to `3` (`**`).
4. Print the integer division result of `15 // 2`.

print(10 + 5)   # 15
print(10 / 2)   # 5.0
print(2 ** 3)   # 8
print(15 // 2)  # 7

Interact with the user:

1. Ask the user for their name using `input()`.
2. Print "Hello" followed by the entered name.

username = input("Enter username:")
print("Hello " + username)

Combine variables with text:

1. You have `age = 36`.
2. Use an f-string to print "My name is John, and I am 36".

age = 36
txt = f"My name is John, and I am {age}"
print(txt)

Evaluate the following expressions:

1. Print the result of `10 > 9`.
2. Print the result of `10 == 9`.
3. Print `bool("Hello")` (is a non-empty string True?).

print(10 > 9)        # True
print(10 == 9)       # False
print(bool("Hello")) # True

Assign multiple variables in one line:

1. Assign "Orange", "Banana", "Cherry" to `x`, `y`, `z` respectively.
2. Print each variable.

x, y, z = "Orange", "Banana", "Cherry"
print(x)
print(y)
print(z)