#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 = %f\n", largest);
	printf("smallest = %f\n", smallest);

	return 0;
}