char asd[10][10];

 void flood(int x, int y)
 {
     if (x<0 || y<0 || x > 9 || y > 9) return;

     if (asd[x][y] != '0') return;

     if (asd[x][y] == '0') asd[x][y] = 'p';

     flood(x-1, y);
     flood(x+1, y);
     flood(x, y+1);
     flood(x, y-1);
 }

int main()
{
    int X; // X coordinate of the cell to fill
    int Y; // Y coordinate of the cell to fill
    cin >> X >> Y; cin.ignore();
    int width;
    cin >> width; cin.ignore();
    int height;
    cin >> height; cin.ignore();
    for (int i = 0; i < height; i++) {
        string row; // One row of the map
        getline(cin, row);
        for (int j = 0; j < row.size();++j) asd[i][j] = row[j];
    }

    flood(X,Y);
    int count = 0;
    for (int i = 0; i < 10; ++i)
    for (int j = 0; j < 10; ++j) if (asd[i][j] == 'p') count++;

    // Write an action using cout. DON'T FORGET THE "<< endl"
    // To debug: cerr << "Debug messages..." << endl;

    cout << count << endl;
}