#include <stdio.h>

/* print Fahrenheit-Celsius table 
	for fahr = 0, 20, ..., 300 */
main()
{
	int fahr, celsius;
	int lower, upper, step;

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

	fahr = lower;
	while (fahr <= upper) {
		celsius = 5 * (fahr-32) / 9;
		printf("%3d %6d\n", fahr, celsius);
		fahr = fahr + step;
	}
}