/* write a program that reads a sequence of positive integers
first negative or zero terminates the input
the program finds the number of iputs, sum and ave, and counts the number of 
evens and number of odds 
*/


#include<stdio.h>
int main(){
	int count=0,sum=0,num,count_even=0, count_odd=0;
	printf("enter a sequence of positive integers\n");
	scanf("%d",&num);
	while(num>0){
		sum+=num;
		count++;
		if(num%2==0)
			count_even++;
		else
			count_odd++;
		scanf("%d",&num);
	}
	if(count>0){
		printf("sum=%d,count=%d,ave=%f\n",sum,count,(float)(sum)/count);
		if(count_even>0)
			printf("%d evens\n",count_even);
		else
			printf("no evens\n");
		if(count_odd>0)
                        printf("%d odds\n",count_odd);
                else
                        printf("no odds\n");

	}
	else
		printf("no positive inputs\n"); 
	return 0;
}