#include <iostream>

using namespace std;


int main() {
	int a[100][100], b[20];
	int nRow, nCol, n = 0;
	cout << "Num Row:\n";
	cin >> nRow;
	cout << "Num Col:\n";
	cin >> nCol;

	cout << "Enter value:\n";
	for (int i = 0; i < nRow; ++i)
		for (int j = 0; j < nCol; ++j) {
			cin >> a[i][j];
		}

	int sum = 0;
	for (int i = 0; i < nRow; ++i)
		for (int j = 0; j < nCol; ++j)
			if (a[i][j] % 2 != 0 && a[i][j] >= 5 && a[i][j] <= 99) {
				sum += a[i][j];
				++n;
			}
	cout << sum * 1.0 / n;


}