/* print Fahrenheit-Celsius table
	for f = 0, 20, ..., 300  
	(This program is from p. 8 of the Kernighan and Ritchie text) 
	*/
main()
{
    int lower, upper, step;
    float fahr, celsius;

    lower = 0;         /* lower limit of temperature table */
    upper = 300;       /* upper limit */
    step = 20;         /* step size */

    fahr = lower;
    while (fahr <= upper) {
        celsius = (5.0/9.0) * (fahr-32.0);
        printf("%4.0f %6.1f\n", fahr, celsius);
        fahr = fahr + step;
    }
}
   celsius = (5.0/9.0) * (fahr-32.0);
        printf("%4.0f %6.1f\n", fahr, celsius);
        fahr = fahr +