#include <iostream>
    using namespace std;
    const int SIZE = 15;
    class Example
    {
        private:
        int array[SIZE];
        public:
        Example()
        {
            register int k;
            for (k = 0; k < SIZE; k++)
            {
                array[k] = k;
            }
        }
        int &operator[](int k)
        {
            if (k > SIZE)
            {
                cout << " Index out of bounds" << endl;
                
                return array[0];
            }
            return array[k];
        }
    };
    int main()
    {
        Example Object;
        cout << Object[10];
        cout  << Object[20];
        return 0;
    }