class Number{
    vector<int> arr;

    public :

    Number(int i){
        arr.clear();
        while (i != 0){
            arr.push_back(i % 10);
            i /= 10;
        }
    };

    ~Number(){};

    int &operator[](int j){
        return arr[j];
    };

    void add(Number &num){
        int tmp = 0, i = 0;

        for (; i < min(getSize(), num.getSize()); ++i){
            arr[i] += tmp + num[i];
            tmp = arr[i] / 10;
            arr[i] %= 10;
        }


        for (; i < num.getSize(); ++i){
            arr.push_back(num[i] + tmp);
            tmp = arr[i] / 10;
            arr[i] %= 10;
        }


        while (tmp > 0 && i < getSize()){
            arr[i] += tmp;
            tmp = arr[i] / 10;
            arr[i] %= 10;
        }

        if (tmp > 0)
            arr.push_back(tmp);
    };


    int getSize(){
        return arr.size();
    };

    void print(){
        for (int i = getSize() - 1; i > -1 ; --i)
            cout << arr[i];
        cout << "\n";
    }

};