// Write a program that prints

//*
//**
//***
//****

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication5
{
    class Program
    {
        static void Main(string[] args)
        {
            for (int i = 1; i <= 4; i++)
            {
              
                for (int j = 1; j <= i; j++)
                {
                    Console.Write("*");
                }

                Console.WriteLine();
            }
            Console.ReadKey();
        }
    }
}