I wish

 c++

    
#include 
#include 


int main()
{
    int number = 0;
    int numberToAdd = 1;
    int modifier = 1;

    std::cout << "Is your number [p]ositive or [n]egative? (Default: positive)\n";
    if (std::cin.get() == 'n') {
        modifier *= -1;
    }

    std::cin.ignore(std::numeric_limits::max(), '\n'); // Clear the input buffer

    bool isEven = true;
    bool running = true;

    while (running) {
        std::cout << number << " is " << (isEven ? "even" : "odd") << ".\n";
        std::cout << "Continue? [y/n] (Default: yes)\n";

        if (std::cin.peek() == 'n') {
            running = false;
        }

        number += numberToAdd * modifier;
        isEven = !isEven;

        std::cin.ignore(std::numeric_limits::max(), '\n');
    }

    std::cout << "Your number, " << number << " was " << (isEven ? "even" : "odd") << ".\n";
}