template <class T>
class Counter {
private:
    T _initialValue;
    T _value;

public:
    Counter(T initialValue) {
        _initialValue = initialValue;
        reset();
    };

    void reset() {
        _value = _initialValue;
    };

    void inc() {
        _value++;
    };

    T getValue() {
        return _value;
    };
};


Counter<int> intCnt(0);
Counter<long> longCnt(0);

void setup() {
    Serial.begin(115200);
}

void loop() {
    intCnt.inc();
    longCnt.inc();
    Serial.println(intCnt.getValue());
    Serial.println(longCnt.getValue());
}