#include <iostream>
#include <cmath>
using namespace std;
template<typename X>
void read(X* a, int n, int m) {
	cout << "enter elements of a"<<endl;
	for (int i = 0;i < n;i++) {
		for (int j = 0;j < m;j++)
			cin>> a[i][j];
	}
	cout << endl;
}
template<typename X >
void print(X* a, int n, int m) {
	for (int i = 0;i < n;i++) {
		for (int j = 0;j < m;j++)
			cout << a[i][j];
		cout << endl;
	}
}
template<typename X >
void middle(X* a, X* mid, int n, int m) {
	int k = 0;
	for (int i = 0;i < n; i++) {
		for (int j = 0;j < m;j++)
			if (a[i][j] < 0) {
				mid += a[i][j];
				k++;
			}
	}
	cout<< "Middle="<<mid /k<<endl;
}

int main() {
	int n, m; int mid1 = 0; double mid2 = 0.0;
	cout << "enter n and m"<<endl;
	cin >> n >> m;
	int** a = new int* [n];
	for (int i = 0; i < n; ++i)
		a[i] = new int[m];
	double b[2][2] = { -1.5,-1.5,-3.0,-2.0};
	read(a, n, m);
	print(a, n, m);
	middle(a, mid1, n, m);
	print(b, 2, 2);
	middle(b, mid2, 2, 2);
	return 0;
}