/*Convert celsious to faranhight in incriments of 20...*/
#include <stdio.h>

int main (void)
{
     float step =20;
     float upper = 300;
     float fah, cel = 0;
     /* Print heading */
     printf ("Celsious \t Faranhight\n");

     while (cel <= upper)
          {
          fah = (5.0*9.0) / (fah+32.0);
          printf("%3.0f \t %6.1f\n", cel, fah);
          cel = cel + step;
          }
     return 0;
}