#include <stdio.h>
#define KMS_PER_MILE 1.609
int
main(void)
{
double miles, kms;
printf ("Enter a distance in miles: ");
scanf("%lf", &miles);
printf("The distance in miles is %.2f.\n", miles);
kms = KMS_PER_MILE * miles;
printf("That equals %.2f kilometers.\n", kms);
return (0);
}