#include<stdio.h>

#define number 20

void main()
{
	int arr[number];
	int i, sum1, sum2, avg, sumtot;

	scanf_s("%d", &arr[number]);

	for (i = 0; i < 20; i++)

		if (number % 2 == 0)
		{
			printf("%d odd numbers: ", arr[i]);
			sum1= sum1 + arr[i];
		}
	for (i = 0; i < 20; i++)
	{
		if (arr[i] % 2 != 0)
		{
			sum2 = sum2 + arr[i];
			printf("insert %d even numbers:\n", arr[i]);
		}
		sumtot= sum1 + sum2;
		avg = sumtot / arr[number];
		printf("%d avg:", avg);

	}
}