v2_2

#include <iostream>

using namespace std;

int main()
{
    int n, m;
    cin >> n >> m;
    int** mas = new int*[n];
    for(int i = 0; i < n; i++)
        mas[i] = new int[m];

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < m; j++)
        {
            cin >> mas[i][j];
        }

    }
    int maind = INT_MIN;
    int adversed = INT_MAX;
    for(int i = 0; i < n; i++)
    {
        if (mas[i][i] > maind)
            maind = mas[i][i];
        if (mas[i][n - i - 1] < adversed)
            adversed = mas[i][n - i - 1];
    }
    cout << maind + adversed << endl;
    system("pause");
    return 0;
}