i need an answer for my problem

Question

 

*

+*

+*+

*+*+

*+*+*

 

 

 

 

class Program

{

static void Main(string[] args)

{

int n = Convert.ToInt32(Console.ReadLine());

for(int i = 0; i <= n; i++)

{

for (int j = 0; j <= i; j++)

{

if (j==i||i+j==n)

{

Console.Write("*");

}

else { Console.Write("+"); }

}

Console.WriteLine();

}

Console.ReadKey();

}