for (int n = 0; n < 7; n++)
{
for (int i = 0; i < 7; i++)
{
string text = i == n || i == 6-n ? "O" : ".";
Console.Write(text);
}
Console.WriteLine();
}
{
for (int i = 0; i < 7; i++)
{
string text = i == n || i == 6-n ? "O" : ".";
Console.Write(text);
}
Console.WriteLine();
}