#include <iostream>

using namespace std;

int main()
{
	int N;
	cin >> N;
	int *arr = new int[N];
	double sum = 0;
	srand(time(NULL));
	for (int i = 0; i < N; i++) {
		cout << (arr[i] = rand() % 101) << ' ';
		if (i % 10 == 0)cout << endl;
	}
	for (int i = 0; i < N; i++) {
		sum += arr[i];
	}
	cout << endl <<  "answer: " << sum / N;
}