# include <stdio.h>
# include <ctype.h>

int main(void)
{
	char answer = 'N';
	double total = 0.0;
	double value = 0.0;
	unsigned int count = 0;

	printf("This program calculates the average of any number of value.\n");

	for(;;)
	{
		printf("\nEnter a value: ");
		scanf("%lf", &value);
		total = total + value;
		++count;

		printf("Do you want to enter another value? ( Y or N):");
		scanf("%c", &answer);

		if(tolower(answer) == 'n')
			break;
	}
	printf("\nThe average is %.2lf\n", total/count);
	return 0;
}