#include <stdio.h>

/* print farenheit-celsius table
 * for fahr = 0, 20, ..., 300 */

int main(){

	float lower = 0; 	/* lower bound of temp scale*/
	float upper = 300;	/* upper bound of temp scale*/
	float step = 20;	/* step size between calculated conversions*/

	printf("Temperature conversion table with 20-degree^f steps. \n");
	printf("%4s\t%6s\n", "DegF", "DegC");

	for (float fahr = lower; fahr <=300; fahr = fahr + step){
		printf("%4.0f\t%6.1f\n", fahr, (5.0/9.0)*(fahr-32));
	}
	return 0;
}