using System;

public class Program

{

    public static void Main()

    {

        const int HEIGHT = 12;

 long[][] triangle = new long[HEIGHT + 1][];

 for (int row = 0; row < HEIGHT; row++)

 {

 triangle[row] = new long[row + 1];

 }

 triangle[0][0] = 1;

 for (int row = 0; row < HEIGHT - 1; row++)

 {

 for (int col = 0; col <= row; col++)

 {

 triangle[row + 1][col] += triangle[row][col];

 triangle[row + 1][col + 1 ] += triangle[row][col];

 }

 }

 for (int row = 0; row < HEIGHT; row++)

 {

 Console.Write("".PadLeft((HEIGHT - row) * 2));

 for (int col = 0; col <= row; col++)

 {

 Console.Write("{0,3}", triangle[row][col]);

 }

 Console.WriteLine();

 }

 }

}

​