#include <stdio.h>
#include <stdlib.h>
#include <time.h>

main()
{
	int tf, tc;
	
	srand((unsigned)time(NULL));
	
	tf = rand() % 151 - 50;
	tc = 5 * (tf - 32) / 9;
	
	printf("%d degree Fahrenheit is %d degree Celsius.\n", tf, tc);

	return(0);
}