#include <iostream>

class Likes {
    private:
        int _likes;
    public:
        Likes(int _likes): _likes(_likes) {
        }
        Likes& operator ++() {
            ++_likes;
            return *this;
        }
        Likes& operator --(int) {
            --_likes;
            return *this;
        }
        Likes& operator +=(int n) {
            _likes += n;
            return *this;
        }
        int value() const {
            return _likes;
        }
};

int main(void) {
    Likes likes(1 << 10);
    ++likes-- += 1;
    std::cout << likes.value() << std::endl;
    return 0;
}