#include <iostream> // only needed beccause i print to console

int leds [4] = {12, 11, 10, 9};
bool state [sizeof(*leds)];
int brightness = 255;

void applyChanges() {
    for(int i = 0; i < sizeof(*leds); i++) {
        if (state[i]) {
            std::cout << "Led " << i+1 << "(" << leds[i] << ") is now on, ";
            std::cout << "with brightness " << brightness << ".\n";
        } else {
            std::cout << "Led " << i+1 << "(" << leds[i] << ") is now off.\n";
        }
    }

}

void toggle(int led) {
    for(int i = 0; i < sizeof(*leds); i++) {
        if (led == leds[i]) {
            if (state[i]) {
            state[i] = false;
            break;
        } else {
            state[i] = true;
            break;
        }
        }
    }
    applyChanges();
}

void adjustBrightness(int value, bool increase) {
    if (increase) {
        brightness += value;
    } else {
        brightness -= value;
    }
    applyChanges();
}

int main(int argc, char const *argv[]) {
    // program starts here
    std::string userInput;

    while (true) {
        std::cin >> userInput;
        if (userInput == "1"){
            toggle(leds[0]);
        } else if (userInput == "2") {
            toggle(leds[1]);
        } else if (userInput == "3") {
            toggle(leds[2]);
        } else if (userInput == "4"){
            toggle(leds[3]);
        } else if (userInput == "+") {
            adjustBrightness(10, true);
        } else if (userInput == "-") {
            adjustBrightness(10, false);
        }

        std::cout << "\nCurrent lamp state:\n ";

        std::cout << leds[0];
        for(int i = 1; i < sizeof(*leds); i++) {
            std::cout << ", " << leds[i];
        }

        std::cout << "\n[" << state[0];
        for(int i = 1; i < sizeof(*leds); i++) {
            std::cout << ",  " << state[i];
        }
        std::cout << "]\n---------------------------------------------------------------------\n";
    }
    return 0;
}