#include <stdio.h>

int main()
{
        int a=5;
        int b=0x3d,c=073;
        int *d; // integer pointer
        char e,*f; // e is data, f character pointer.
        e='X'; // e is a single character
        d=&c;
        f=&e;

        printf("address of a is: %p\n",&a);
        printf("address of b is: %p\n",&b);
        printf("address of c is: %p\n",&c);
        printf("address of d is: %p\n",&d);
        printf("address of e is: %p\n",&e);
        printf("address of f is: %p\n",&f);

        printf("a contains: %d\n",a);
        printf("b contains: %d\n",b);
        printf("c contains: %d\n",c);
        printf("d contains: %p\n",d);
        printf("e contains: '%c'(%hhd)\n",e,e);
        printf("f contains: %p\n",f);

        printf("d dereferenced is: %d\n", *d);
        printf("f dereferenced is: '%c'(%hhd)\n",*f,*f);

        return(0);
}