#include<stdio.h>

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

	count = 0;
	sum = 0;
	largest = 0;
	smallest = 101;

	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);

	printf("\nCount = %d\n", count - 1);
	printf("Sum = %d\n", sum);
	printf("Average = %.2f\n", (float)sum/(float)(count-1));
	printf("Largest = %d\n", largest);
	printf("Smallest = %d\n\n", smallest);

	return 0;
}