#include<iostream.h> 
static int Result;
class India
{
    public:
    void Change(int x = 10, int y = 20, int z = 30)
    {
        cout<< x + y + z;
    }
    void Display(int x = 40, float y = 50.00)
    {
        Result = x % x; 
        cout<< Result;
    }
};
class CuriousTab
{
    int x, y; 
    public:
    void Change(int x, int y = 50)
    {
        cout<< x + y;
    }
};
class CuriousTab: public India, public CuriousTab
{
    public:
    void Display(int x = 10, int xx = 100, int xxx = 1000)
    {
        Result = x + xx % x * x;
        cout<< Result ; 
    }
};
int main()
{
    CuriousTab objCuriousTab;
    objCuriousTab.India::Display(10, 20.00);
    return 0; 
}

#include<iostream.h> 
class CuriousTabSample
{
    public:
        int   a; 
        float b;
        void CuriousTabFunction(int a, float b, float c = 100.0f)
        {
            cout<< a % 20 + c * --b;
        } 
}; 
int main()
{   CuriousTabSample objCuriousTab;
    objCuriousTab.CuriousTabFunction(20, 2.000000f, 5.0f);
    return 0; 
}

#include<iostream.h> 
class CuriousTab
{
    public: 
    int x, y;
    CuriousTab(int xx = 10, int yy = 20)
    {
        x = xx;
        y = yy; 
    }
    void Exchange(int *, int *);
};
int main()
{
    CuriousTab objA(30, 40); 
    CuriousTab objB(50); 
    objA.Exchange(&objA.x, &objB.y); 
    cout<< objA.x << " " << objB.y << endl; 
    return 0;
}
void CuriousTab::Exchange(int *x, int *y)
{
    int t;
    t  = *x;
    *x = *y;
    *y = t ; 
}