python

Sure, I can provide explanations for each step in C++ and Python.

C++:

#include <iostream>

int main() {
    // Declare variables
    int num1, num2, sum;

    // Input values from the user
    std::cout << "Enter first number: ";
    std::cin >> num1;

    std::cout << "Enter second number: ";
    std::cin >> num2;

    // Calculate the sum
    sum = num1 + num2;

    // Display the result
    std::cout << "Sum: " << sum << std::endl;

    return 0;
}

Explanation: 1. Include the necessary header file (#include <iostream>) for input and output operations. 2. Declare three integer variables: num1, num2, and sum. 3. Prompt the user to enter the first number and store it in the variable num1. 4. Prompt the user to enter the second number and store it in the variable num2. 5. Calculate the sum of num1 and num2 and store it in the variable sum. 6. Display the result using std::cout. 7. Return 0 to indicate successful program execution.

Python:

# Input values from the user
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))

# Calculate the sum
sum = num1 + num2

# Display the result
print("Sum:", sum)

Explanation: 1. Use the input function to get user input for the first number, convert it to an integer using int(), and store it in the variable num1. 2. Repeat the process for the second number, storing it in the variable num2. 3. Calculate the sum of num1 and num2 and store it in the variable sum. 4. Use the print function to display the result.