#include <iostream>

using namespace std;

int maxCol(int a[][100], int nRow, int col) {
	int max = a[0][col];
	for (int i = 1; i < nRow; ++i) {
		if (a[i][col] > max) max = a[i][col];
	}
	return max;
}

float average(int* a, int n) {
	int sum = 0;
	for (int i = 0; i < n; ++i)
		sum += a[i];
	return sum*1.0 / n;
}

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];
		}

	for (int i = 0; i < nCol; ++i) {
		if (i % 2 != 0) {
			b[n++] = maxCol(a, nRow, i);
		}
	}

	cout << "Average:\n" << average(b, n) << endl;
	
}