#include <stdio.h>

/* print fahrenheit-celcius table */

double convert(int a)
{
	double u;

	u = (a - 32) * (5.0/9.0);
	return u;
}

main()
{
	int f;

	for (f = 0; f <= 300; f = f + 20)
		printf("%3d %6.1f\n", f, convert(f));

	return 0;
}