using System;
public class Program
{
public static void Fstring(int n, char c)
for (int i = 0;i<n;i=i+1)
Console.Write(c);
}
public static void Croix (int h )
int n = h*2-3;
for (int i = 0;i<h;i=i+1)
Console.WriteLine("");
Fstring(i+1,' ');
Fstring(1,'*');
Fstring(n,' ');
if (n>0)
n=n-2;
n=1;
for (int i = h;i>1;i=i-1)
Fstring(i-1,' ');
n= n+2;
public static void Main()
int h = 10;
Croix(h);