#include <stdio.h>

#define TEMP(a) ((5.0/9.0)*(a-32.0))

int main(void)
{
	int x;
	float y;
	x = 0;

	printf("Umrechnung von Grad Celsius in Grad Fahrenheit\n");

		while(x <= 400)
		{
			y = TEMP(x);
			printf("%i Grad Celsius \t = \t %f Grad Fahrenheit\n ", x, y);
			x = x + 20;
		}

	getchar();

	return 0;
}