#include <iostream>
using namespace std;

class Array
{
public:
    int **IntArray;
    int n;
    int b, a, r, l, p;
    Array()
    {

    }
    ~Array() {
        IntArray = 0;
        n = 0;
    }
    int setVvod()
    {
        cout << "vvedite n";
        cin >> n;
        cout << "vvedite massiv" << endl;
        IntArray = new int*[n];
        for (int i = 0; i < n; i++)
        {
            IntArray[i] = new int[n];
            for (int j = 0; j < n; j++)
            {
                cin >> IntArray[i][j];
            }
        }
        return 1;
    }
    void getvyvod() {
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < n; j++)
            {
                cout << IntArray[i][j] << " ";
            }
            cout << endl;
        }
    }
    int summ(int l)
    {
        int s = 0;
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < n; j++)
            {
                if (l > n) cout << "unreal" << endl;
                if (j == l) s += IntArray[i][j];
            }
        }
        return s;
    }
    void search()
    {
        cout << "enter number of column: ";
        cin >> a;
        cout << "Number of string";
        cin >> r;
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < n; j++)
            {
                if (i == r - 1 && j == a - 1) p = IntArray[i][j];
            }
        }
        cout << "element= " << p << endl;

    }
    int getNull()
    {
        {
            int b = 0;
            for (int i = 0; i < n; i++)
            {
                for (int j = 0; j < n; j++)
                {
                    if (IntArray[i][j] == 0)b++;

                }
            }
            return b;
        }
    }
    int Setscalar()
    {
        {
            for (int i = 0; i < n; i++)
            {
                if (i == i)
                {
                    IntArray[i][i] = 0;
                    cout << IntArray[i][i];
                }
            }
        }
    }
};

int main()
{
    int l;
    Array mas;

    mas.setVvod();
    mas.getvyvod();

    mas.search();
    std::cout << std::endl;
    cout << "Number of string";
    cin >> l;
    std::cout << mas.summ(l-1) << std::endl;
    system("PAUSE");
    return 0;
}