using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
for (int i = 0; i < 5; i++)
{
for (int j = 0; j <= i; j++)
{
Console.Write("*");
}
Console.Write("\n");
}
for (int i = 5; i >= 0; i--)
{
for (int j = 0; j <= i; j++)
{
Console.Write("*");
}
Console.Write("\n");
}
Console.ReadLine();
}
}
}
