namespace CSD
{
class App
{
public static void Main()
{
int n;
int left, right;
System.Console.Write("Lütfen bir sayı giriniz:");
n = int.Parse(System.Console.ReadLine());
left = right = n - 1;
for (int i = 0; i < n; ++i)
{
WriteStars(left, right);
--left;
++right;
}
left += 2;
right -= 2;
for (int i = 0; i < n; ++i)
{
WriteStars(left, right);
++left;
--right;
}
}
public static void WriteStars(int left, int right)
{
for (int i = 0; i <= right; ++i)
if (i >= left)
System.Console.Write("*");
else
System.Console.Write(" ");
System.Console.WriteLine();
}
}
}