#include <stdio.h>
#include <math.h>

void main()
{
    char input[20];
    char *i_address;
    double miles,kilometers;
    double *m_address,*k_address;

    printf("Enter a value in miles:");
    miles=atof(gets(input));

    kilometers = miles*1.609;

    printf("%.2f miles works out to\
    %.2f kilometers",miles,kilometers);
    
    i_address = input; 
    m_address = &miles;
    k_address = &kilometers;
                                         
	puts("\nVariables:");

    printf("input is %i bytes at address\
    %u\n",sizeof(input),i_address);
    printf("miles is %i bytes at address\
    %u\n",sizeof(miles),m_address);
    printf("kilometers is %i bytes at address\
    %u\n",sizeof(kilometers),k_address);
}