#include <iostream>
int main() {
// Step 1: Declare a variable and initialize it with an integer value.
auto number = 42;
// Step 2: Declare a variable and initialize it with a double-precision floating-point value.
auto pi = 3.14;
// Step 3: Declare a variable and initialize it with a character.
auto letter = 'A';
// Step 4: Declare a variable and initialize it with a string.
auto greeting = "Hello, World!";
// Step 5: Declare a variable and initialize it with the result of an expression.
auto sum = number + pi;
// Step 6: Display the values of the variables.
std::cout << "Number: " << number << std::endl;
std::cout << "Pi: " << pi << std::endl;
std::cout << "Letter: " << letter << std::endl;
std::cout << "Greeting: " << greeting << std::endl;
std::cout << "Sum: " << sum << std::endl;
return 0;
}