#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);	

		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;

}