using System;
 
public class Test
{
	public static void Main()
	{
		            int i = 0;
            int j = 0;
            for ( i = 0; i < 4; i++ )
            {
                for ( j = 0; j < 4; j++ )
                {
                    if ( j < 3 - i )
                        Console.Write(" ");
                    else
                        Console.Write("█");
                }
                Console.Write('\n');
            }
 
            Console.ReadKey();
	}
}

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