#include <stdio.h>
#include <memory.h>
#include <string.h>
int main() {
	#define MAX_A_SIZE 256
	int num, val, counter = 0;
	char msg[MAX_A_SIZE];
	printf("Insert a positive integer value\n");
	if ( scanf_s("%d", &num) != 1)
    {
        perror("Error reading the big even number");
        return(1);
    }
	printf("Insert a sequence of positive integers(0 to terminate) :\n");
	memset(msg, '\0', MAX_A_SIZE);
	do
	{
  	     if ( scanf_s("%d", &val) != 1)
        {
            perror("Error reading the big even number");
            return(2);
        }
		if (val != 0 && (val % 2) == 0 && (num % val) == 0)
		{
			counter++;
			sprintf_s(msg + strlen(msg), MAX_A_SIZE - strlen(msg), "%d, ", val);
		}
	}
	while (val != 0);
	msg[strlen(msg) - 2] = '\0';
	printf("The even values divisors of %d are %d: %s", num, counter, msg);
	return 0;
}