#include <stdio.h>
/**
 * Print a prompt "Input degrees F: " and accept a double input
 * and convert the input to degrees Celsius and print it out to
 * two decimal places.
 * Example input/output:
 * ./h1
 * Input degrees F: 90
 * Degrees C = 32.22
 */

int main(void)
{
  // These must be double according to the specification above.
  double F, C;

  printf("Input degrees F: ");
  scanf("%lf", &F);
  // Using 5.0/9.0 makes each number floating point, so the division is floating
  // point.  Using 5/9 is integer division (result = 0) since both numbers would
  // be integers.
  C = (F-32) * (5.0/9.0);
  printf("Degrees C = %.2f\n", C);

  return 0;
}