#include <stdio.h>

int main()
{
	int number, count, sum, largest, smallest;	

	count = 0;
	sum = 0;
	largest = 0;
	smallest = 100;

	do {
		do {
			printf("number %d =", count + 1);
			scanf("%d", &number);
			if (number < 0)
				printf("positive number only, please re-enter.\n"); 
		}while  (number < 0);
		count = count + 1;
		sum = sum + number;
		if (number > largest);
			largest = number;
		if (number < smallest && number != 0);
			smallest = number;
	}while (number != 0);
	
	count = count - 1;
	printf("\nCount = %d\n", count);
	printf("Sum = %d\n", sum);
	printf("Average = %.2f\n", (float)sum/(float)count);
	printf("Largest = %d\n", largest);
	printf("Smallest = %d\n", smallest);

	return 0;
}