What is the output of this program

    #include iostream
    class A
    {
        public:
        A(int n)
        {
            cout  n;
        }
    };
    class B: public A
    {
        public:
        B(int n, double d)
        : A(n)
        {
            cout  d;
        }    
    };
    class C: public B
    {
        public:
        C(int n, double d, char ch)
        : B(n, d)
        {
            cout ch;
        }
    };
    int main()
    {
        C c(8, 2.3, 'R');
        return 0;
    }