using System;
class WriteIsoscelesTriangleOnScreen_CSharp
{
static void Main()
{
int n = 7;
for (int i = 1; i <= n; i += 2) {
for (int k = (n - i) / 2; k >= 0; k--) {
Console.Write(" ");
}
for (int j = 1; j <= i; j++) {
Console.Write("*");
}
Console.WriteLine();
}
}
}
/*
run:
*
***
*****
*******
*/