int main() {

    cout << "DECIMAL            BINARY      HEXDECIMAL              BCD" << endl;

    for (int num = 0; num <= 255; num++) {
        cout << num << "            ";
        cout << binary(num) << "    ";
        cout << hex(num) << "               ";
        cout << bcd(num);
        cout << endl;
    }

    return 0;
}

ofstream outputFile("program0.txt");
//... An example of how to write to a txt file
outputFile << "writing to file";