#include <iostream>

// Function declarations
int main();

// Suppose you are given the following code.
//
// Read the code carefully and answer these questions:
//
//  - What is the program intended to do?
//  - Does the program work correctly?
//  - Are there any errors you can identify and fix?
//  - Are there any improvements you would make to
//    the code or its formatting?
//  - Do the comments help you understand the code,
//    or would additional comments be useful?
//
// Make any changes you believe would improve the program.

int main() {
    double a{};

    std::cout << "Enter the lower-"
              << "bound: ";
    std::cin >> a;

    double b{};

    std::cout << "Enter the bound-"
              << "bound: ";
    std::cin >> b;

    double x1{ a +   b - a/4.0 };
    double x2{ a + 2*b - a/4.0 };
    double x3{ a + 3*b - a/4.0 };

    std::cout << "Five equally-spaced"
              << " points are:"
              << std::endl;

    std::cout << "  " << a
              << ", " << x1
              << ", " << x2
              << ", " << x3
              << ", " << b
              << std::endl;

    return 0;
}